World Health Life

Yosemite Park Fire Falls

Posted by watertree under Beautiful scenery

Yosemite Park is located in California. This home was built in 1890 by the National Park canyon, waterfalls, the Millennium American song of welcome by the public, occupies an area of 1200 square miles. Because the grand magnificent scenery, the park’s name has often been translated as “Yosemite.” El Capitan and waterfalls above the fire is the park’s landscape, one of the most rare.

In fact, the fire is not a waterfall of lava eruption in the whereabouts, nor is it the Peak was in the welding, scattering sparks downstairs. It is a specific angle in the sunlight falls on the optical effect of the formation. The landscape only in year 2 at the end of two weeks can see a certain probability. Emergence of probability and almost dark gold and equipment. Flickr Falls fire some shots of the photographer, and often takes several years to get pictures of the fire falls.

The reason why such a rare sight to see, the key lies in the fact that the emergence of fire falls several conditions to be met.

The first is the formation of waterfalls. This waterfall is to rely on chiefs rock melting snow-capped mountains above the water as the source, so there is not throughout the year. Chiefs rock in the snow in general in December and January each year to melt. To the end of February, this falls is likely to have disappeared.

Secondly, the angle of the sun. Must be precisely the location of the sun will shine over the falls on this. Angle of the sun and the right only in January of each year, the sunny evening in February. If the sky has clouds, there are other things you can only see the Falls of the ordinary. Unfortunately, February is the National Park is relatively easy to change the weather of the month.

Based on these harsh conditions, the success of fire shooting photos are not many waterfalls. But the current photos of view, very beautiful indeed. The following are the other two plans:

In 1871, before Yosemite was a National Park, James McCauley paid famous trail builder John Conway to build the Four-Mile Trail from Yosemite Valley, where McCauley had a home at the base of the trail, to Glacier Point. Soon after the trail was completed in 1872, McCauley built a small two-story hotel on Glacier Point, the Glacier Point Mountain House. In 1879, he married; and he and his hard-working German wife, Barbara, ran the hotel during the summer months. Twin sons, John and Fred, were born in 1880; and in 1883, James McCauley sent to Ireland for his niece, Elizabeth McCauley, to come to Yosemite to help them with the hotel and the lively, mischievous boys.

In later years, James McCauley’s son Fred had an apple ranch just outside the Park, and he died in the 1930s. Fred’s twin brother John (who died in the 1970s) recounted the history of the firefall to Ranger-Naturalist Bob Fry in 1961 at a party at the home of Yosemite historian Shirley Sargent in Foresta. John said that the famous Firefall began in a spontaneous way. When they lived at Glacier Point during the summer, the two boys rode burros down the Four-Mile Trail each day to school (school was in session from April to October each year, and the hotel at Glacier Point was open only during the warm months of the year, mainly the summer season). While they were in the Valley after school, the boys talked to various visitors, who would comment on the campfire they had seen the night before at Glacier Point.

Many nights James McCauley would build a large campfire for his guests on the point of the granite cliff that jutted out over the Valley, and they would sit around the fire and talk and sing. When everyone was ready to go back to the hotel, he would kick the coals off the edge of the cliff. This is what people in the Valley occasionally saw. They would say to the McCauley boys something like “Mighty fine campfire your father had last night.” Some visitors gave them money, saying things like “Here’s two bits. Tell your father to have another firefall tonight.” John McCauley indicated that he and Fred got the idea that this was a good way to earn a little money, so they encouraged visitors to donate. This way, the boys might collect a dollar or two or maybe even more; and then they gathered wood for the larger fire they had promised (wood was scarce on Glacier Point) before making the hike up the Four-Mile Trail, leading the burros, which were now loaded with wood. However, many campers expressed disappointment because they had not seen the coals when James McCauley kicked them over the side of the cliff. They had no way of knowing when the event would occur. So James McCauley devised a signal to let the campers in the Valley below know when the “firefall” of coals would occur. He tied a gunny sack to a long pole and dipped the gunny sack in “coal oil” (kerosene). Then when it was time, he lit the gunny sack and waved it back and forth. This as a signal that could be seen clearly by those below. Then he would kick over the campfire coals, to the delight of the campers in the Valley. Later someone suggested that he signal by sound. So one night he set off a charge of one-half stick of dynamite, but he did it only the one time. It made too loud a noise and scared some people.

In 1897 the Washburn brothers, who then owned the Wawona Hotel, had the Guardian of the State Grant (before Yosemite was a National Park) evict James McCauley, and they took over the hotel at Glacier Point. They did not continue McCauley’s practice of the Firefall.

The following year, McCauley bought John Lembert’s homestead in Tuolumne Meadows and ran cattle there. He and his sons built a small cabin on the property at Tuolumne Meadows; it still stands today, and it is still used for housing by Park personnel. It is called “the McCauley Cabin” and has a historical marker in front of it. James McCauley died in 1903, and the McCauley family continued to use the Tuolumne Meadows property until they sold it to the Sierra Club in 1912; the Sierra Club sold that property to the National Park Service in 1973.

In 1899 David Curry established Camp Curry in Yosemite Valley. Soon he heard visitors speak of having seen the pleasurable sight of the Firefall when McCauley ran the hotel at Glacier Point. Some time in the early 1900s, David Curry reestablished the Firefall during the summer season, when guests were camping at Camp Curry. He sent his own employees up to Glacier Point to build a fire and push it off on special holidays and on other nights when prominent guests were staying at Camp Curry.

David Curry prided himself on his booming voice. He fancied himself to have a voice like the famous Greek herald named Stentor (in comparing himself to the herald, Curry called him Captain Stentor and said his loud voice could command a thousand men). He, himself, would call up to Glacier Point to signal when the Firefall should begin. At first the calls went something like this:

David Curry: Hello, Glacier Point.
Glacier Point: Hello.
David Curry: Let ‘er go, Gallagher.

However, on May 31, 1913, Assistant Secretary of the Interior Adolph C. Miller and David Curry had a confrontation over the Curry Camping Company’s lease contract. Miller said, “I’m going to take the Firefall away. There will be no Firefall.” Curry felt that a rival company, the Desmond Park Service Company, had influenced the Park Service against him. From that time on, he would begin the nightly entertainment program at Camp Curry by saying “Welcome to Camp Curry, where the Stentor calls and fire used to fall.” In 1916, Desmond built the Glacier Point Hotel, a large chalet-style hotel with a commanding view of Vernal Fall and Nevada Fall.

Finally, on March 8, 1917, Secretary of the Interior Franklin K. Lane granted the Curry Camping Company a five-year lease and said that the Firefall could be reinstated as a nightly summertime event. However, David Curry died soon after, on April 30; and his widow, Jennie (known as “Mother Curry” to visitors and employees), and son Foster opened Camp Curry the summer of 1917 and presided at the reintroduction of the Firefall. Foster Curry shouted “Let ‘er go, Gallagher” that night and continued to be the caller as long as he was there.

Later the calls were changed to the traditional ones that would be repeated each summer night as long as the Firefall continued. The job of making the calls was one that loud-voiced employees vied for.

*

Camp Curry: Hello, Glacier Point.
Glacier Point: Hello, Camp Curry.
Camp Curry: Is the fire ready?
Glacier Point: The fire is ready.
Camp Curry: Let the fire fall.
Glacier Point: The fire falls.

By 1960, the middle exchange of calls (“Is the fire ready?”; “The fire is ready.”) had been eliminated.

As the fire fell, the “Indian Love Call” would be sung at Camp Curry while visitors enjoyed the beautiful sight of what seemed to be a waterfall of fire. At the campground sites where Ranger-Naturalists (as they were called then) gave nightly summer talks, “America the Beautiful” was played, and the audience sang along. It was an emotional experience. One child said, “That makes me feel like . . . like . . . something.” Words couldn’t express the feeling entirely. The time of the Firefall was established to be 9:00 p.m. The Ranger-Naturalists had to be careful to end their nightly programs in the campgrounds and at Camp Curry right at 9:00, or the “fire would fall on the program.” In 1962, President John F. Kennedy visited Yosemite National Park, and on that night an especially large fire was built on the Point to make a spectacular Firefall. However, President Kennedy was talking on the telephone at 9:00, so the Firefall was delayed until he finished his conversation. That night the Firefall occurred around 9:30 p.m.

Sometime, probably by 1920, it was discovered that [red fir] bark was the best fuel to produce an even flow of coals, so fires were made of red fir bark instead of wood. Employees would gather huge piles of the bark, which they stored near the hotel; and each day a stack of the bark would be placed on the Valley side of the Point, to be lit that night and to burn for a couple hours to produce a good bed of coals. Through the years, hotel guests and other visitors to Glacier Point enjoyed watching the hotel employees gradually push the glowing embers off the cliff with long-handled metal pushers. It was quite a spectacle whether seen from Yosemite Valley or from Glacier Point.

In 1925 all the rival business companies in the Park united to form the Yosemite Park and Curry Company under the direction of the Curry family. YPCC continued to be the concessionaire of Yosemite National Park from that time until 1993 (Although the YPCC has been owned by various corporations in recent decades, the name remained the same. Today the company is owned by Delaware North and is called Yosemite Concession Services). Under the Currys’ management the Glacier Point Hotel was a popular place to stay. McCauley’s original Mountain House continued to be used to house either guests or employees. The cafeteria, where meals were served to hotel guests and others, was located in the Mountain House. For more precise information on the various Park hotels, see “Yosemite & Its Innkeepers” by Shirley Sargent.

During World War II the Firefall was discontinued. Some people in both the National Park Service and the Yosemite Park and Curry Company hoped that it would not be continued after the war. The NPS considered it an unnatural event in a natural area, and the task of presenting the Firefall each night was becoming a burden to YPCC. Employees drove in trucks farther and farther away to find the red fir bark because they were allowed to collect it only from trees that were dead and down. Before the Firefall ended, they were going as far away as the Tioga Road. However, after World War II, the public demanded that the traditional Firefall be returned. So it was, and it was quite an attraction for the next two decades.

The Firefall can be seen in the 1954 movie The Caine Mutiny when one of the naval officers goes to Yosemite for shore leave.

Finally, in January 1968, George Hertzog, Director of the National Park Service, ordered that the Firefall be discontinued. He stated his reasons: the Firefall was a man-made event, which detracted from National Park Service policy to encourage appreciation of natural wonders. He said that, if people want to see something like that, they could go to Disneyland in Southern California. Also, the traffic was increasingly becoming a problem as each night a steady stream of cars left the campgrounds and meadow areas where people had gone to get the best views. The last spectacular Firefall was seen on Thursday, January 25, 1968, when, of course, there was no crowd.

As it turned out, the Firefall might have been discontinued by natural means the following year anyway. The winter of 1968-1969 was a particularly hard winter with heavy snows. That was the winter that the famous Wawona Tree fell. Also called the “Tunnel Tree,” it was the Giant Sequoia in the Mariposa Grove of Big Trees that the Washburn brothers had a tunnel cut through in 1881 so that horse-drawn stages (and later cars) could drive through. The Glacier Point Hotel was damaged that winter by a heavy snow pack. It would have to be torn down and rebuilt. Therefore, no guests were booked for the hotel that summer. A few employees lived in the old Mountain House (then the oldest building in the Park) and sold snacks during the day to visitors to Glacier Point. In early July 1969, an electrical fire began one night in the lower floor of the unattended Glacier Point Hotel, and the hotel and the Mountain House burned completely. Many trees were also burned. The huge pile of red fir bark near the hotel, left from previous summers, helped fuel the fire. Glacier Point was closed to visitors for the rest of the summer of 1969 while workers cleared away the debris and while logs were taken out.

The next summer the Yosemite Park and Curry Company built a small snack shop to serve visitors to Glacier Point during daytime hours. YPCC considered rebuilding a hotel at Glacier Point, but the Park Service would not let the company rebuild at the same location; it would have to be placed farther back from the edge. Also, water was always a problem at Glacier Point; some summers the hotel had to be closed in August because there was not enough water to accommodate the needs of hotel guests. So the Glacier Point Hotel and McCauley’s old Mountain House, like the famous Firefall, became only memories.

Tags: firefall, magnificent scenery, melting snow, snow capped mountains, yosemite park

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MJ’s hair to make diamonds

Posted by watertree under Michael Jackson

Recently, LifeGem company announced that they would use MJ diamond production scorched hair. And more than one, LifeGem the person in charge said that they now get a sample of hair scorched MJ, are probably able to produce estimates of the number of diamonds.

How dare these hair come from? Of course not pull him from the dead, but 25 years ago, a Pepsi-Cola to his rehearsal, there are hair on fire and falling accidents. (The specific process can look at this Youtube video) I did not expect the staff of Pepsi that had also keep a lock of hair (shock, the body is a celebrity hair, have the appreciation of the space). So the near future, we will be able to see a lock of hair to use this LifeGem produced a diamond.

It is said that in 2007 the company also collected from Beethoven’s hair, we have become a diamond.

Tags: celebrity hair, lifegem diamond, Michael Jackson, ralph cohen, youtube video

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Milk soft drink ? !

Posted by watertree under Drinking

Cows may not want to see this is true, but the Coca-Cola Company is ready to do so.

Coca-Cola Company recently announced that they will produce the world’s unprecedented Fizzy Milk / milk, soft drinks, the drink will be mixed carbonated soft drinks and skimmed milk, and fruit flavors with. Plans to create a new kind of popular drinks.

This milk will be vested in the Coca-Cola’s soft drinks brands Vio, it will first test in the New York area sales. Coca-Cola wrote copy: like a birthday party for a polar bear. Source Digg Link

At present, there are four types of soft drinks Vio milk tastes: peach mango, berries, citrus and tropical colada.

COWS may not think it is the real thing but Coca-Cola is set to launch fizzy milk on the world.

The drink contains skimmed milk mixed with sparking water, flavoured with fruit and sweetened with cane sugar.

Scientists have developed the drink at the firm’s laboratories in Atlanta, Georgia, ensuring it will not curdle in its 8oz aluminium bottle.

Going under the name Vio, Coca-Cola has begun test-marketing the carbonated drink at natural food stores and delis in New York It sells for about £1.50 a bottle, no chilling required. One of Coke’s copywriters claims it tastes “like a birthday party for a polar bear”.

It comes in four “natural” flavours — peach mango, berry, citrus and tropical colada — and could even be marketed as a healthy nutritional drink. But it has 26g of sugar a bottle, on a par with other non-diet Coca-Cola products, and 1.5g of fat.

A flavour tester for BevNET.com, a drink industry research site, who tasted the citrus version, said: “It’s big on milk flavour and, as a result, has a somewhat creamy body. It didn’t seem sweet until you consumed almost a whole bottle.”

The drink is part of a wider Coke initiative called Project Life to develop milk-based products. If it is a success in the United States it could be launched globally.

Coca-Cola GB said there were no plans for a British version but added: “We are constantly listening to consumers.”

David Jago, director of insight and innovation at Mintel, the consumer research firm, said: “I suspect it is a bit of a novelty. British people will expect a milk drink to be chilled and will be suspicious if they see it on the shelves.”

Dairy farmers hope the drink could boost milk consumption.

David Cotton, vice-chairman of the Royal Association of British Dairy Farmers, said: “Anything that helps to sell milk is great. If Coca-Cola want to market fizzy milk and give us the odd shilling, we would be very happy.”

Tags: birthday party, coca cola company, coca cola products, Fizzy Milk

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Devil ray a good big mouth

Posted by watertree under Animal

This is the mouth of the fish close-up, it is science fiction, it is beautiful. There are also the source of the blue line Mito. Link

Devil ray, living in warm temperate and tropical area along the mainland and islands. In its head with two Sarcodina long, time to eat with. Great effort this guy, sharks are afraid of him, fan-like wings, you can beat it. Shrimp to eat the small fish usually happy when inside a circular motion in the sea, one person out of the sea surface height, and then BANG bang, hit the water.

The most mischievous is full up with the first side of the ship in small boats to scare people, but also in the middle of the night free of charge to help you pull out the anchors.

A manta ray channels plankton-rich water through its mouth near Hanifaru, one of the Indian Ocean islands that make up the Maldives, in an undated photo.

Hundreds of giant fish converge in Hanifaru Bay from May through November, when the lunar tide sucks krill and plankton to the surface, giving rays an all-you-can-eat buffet.

(Read about the manta ray feeding frenzy in National Geographic magazine, or see more photographs.)

In June 2009 the Maldives created three new marine protected areas that include Hanifaru and other crucial feeding areas for mantas and whale sharks, the world’s largest fish (whale shark pictures, facts, and more).

Fishing, boat speeds, and waste disposal will be regulated. The new sanctuaries, however, will allow some diving and snorkeling—a healthy tourist trade may provide alternative livelihoods for fishers, experts say.

(Read our NatGeo News Watch blog for more on the new laws.)

“The government is committed to protecting and preserving the Maldives’ exceptional biodiversity,” Maldives Environment Minister Mohamed Aslam said in a statement.

“The marine environment is the bedrock of our economy, supporting our largest industries, tourism and fisheries.”

(The National Geographic Society owns National Geographic magazine and National Geographic News.)

Mantas in the Maldives (such as this one feeding near a whale shark in an undated photo) number about 10,000 and can reach lengths of 12 feet (3.7 meters).

When krill and plankton get trapped in Hanifaru Bay between May and November, the massive rays exhibit what experts call cyclone feeding: following each other until hundreds of the rays form a spiraling vortex.

(Watch a manta ray feeding-frenzy video, or see more photographs.)

The newly protected bay is “one of the last places on the planet where rays and whale sharks still roam in numbers reminiscent of times gone by,” Save Our Seas Foundation marine biologist Guy Stevens said in a statement.

—Photograph by Thomas P. Peschak, NGS Image Collection

Roughly 40-foot-long (12.2-meter-long) long, plankton-hungry whale sharks also show up for the Hanifaru Bay feeding frenzy and stand to benefit from the June 2009 designation of three new marine refuges in the Maldives.

At least 120 of the shipping container-size sharks live in the ocean around the Maldives, one of the few places in the world where the gentle giants can be found year-round.

—Photograph courtesy Thomas P. Peschak, Save Our Seas Foundation

The Maldives (including the islands in this undated aerial photograph) is an archipelago of 1,192 tiny islands— and as of June 2009, home to three new marine protected areas.

In the new reserves only traditional bait-fishing by local fishers will be allowed, helping to protect what conservationists call one of the world’s most vital populations of manta rays.

—Photograph by James L. Stanfield, NGS Image Collection

Fish swim over coral in the Maldives’ Baa Atoll, a ring-shaped coral island that encircles a shallow lagoon.

Often located in the middle of vast tropical oceans, atolls are coral reefs that extend above the water.

Over thousands of years tiny, sea anemone-like coral polyps can build atolls as wide as six miles (ten kilometers), some of which can small cities, according to NASA’s Earth Observatory.

—Photograph courtesy Thomas P. Peschak, Save Our Seas Foundation

Tags: devil ray, national geographic magazine, national geographic news, sea surface height, whale shark pictures

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Photoshop contest to shave celebrity

Posted by watertree under photo

Russia, some blogger, the event was launched to shave PS Masters Competition.

That Osama bin Laden after scraping a beard so young.

There are more humorous works

Comrade Stalin was not a beard then, so insignificant.

Chaplin is very delicate and pretty:

Dali’s eyes looked a lot thinner :

Einstein in meditation (In his mind, what I said you can not know.)

So a handsome man:

Link

Tags: blogger, comrade stalin, handsome man, humorous works, osama bin laden

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Meditation can make your brain larger

Posted by watertree under Health living

From the University of California at Los Angeles (UCLA) and the Eileen Luders colleagues, by thinking through the MRI scan of the brain were found: Meditation enables certain parts of human brain size. UCLAnews Link

The so-called meditation, that is, through careful thinking, meditation to achieve focus, control their emotions, reducing stress as a way of thinking. Eileen test in 44 years of meditation have a habit of volunteers, they found that because the reasons for meditation, their brain responsible for emotional control will be obvious to those parts of larger than ordinary people.

Eileen believes that these ‘big brain’ phenomenon may be the neurons are thought to allow better control of their emotions, to make some adjustments.

Therefore, to think more about in order to have a real brain.

Tags: brain anatomy, emotional control, magnetic resonance imaging, parts of human brain, postdoctoral research fellow, ucla laboratory

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Wild animals into pets

Posted by watertree under Animal

In a free Russia, and sometimes, it can be to wild animals as pets.

There are no legal regulations what you can raise pets and what can not be raised, not PETA, there is no requirement to pet waste into a special bag. And pet you can park in the streets and any place to take a walk, do not have any “pet may not enter” logo.

Some people think that the confusion, some people think that this is free, as you would like to decide how.

Via

The Fishing Cat (Prionailurus viverrinus) is a medium-sized cat whose disjunct global range extends from eastern Pakistan through portions of India, Nepal and Sri Lanka, throughout Bangladesh and Mainland Southeast Asia to Sumatra and Java.

Its fur has an olive-grey color with dark spots arranged stripe-like running along the length of the body. The face has a distinctly flat-nosed appearance. The size varies between locations. While Indian specimens grow to 80 cm (32 in) plus 30 cm (12 in) tail, Indonesian fishing cats only reach 65 cm (26 in) plus 25 cm (10 in) tail. Indian individuals weigh up to 11.7 kg (26 lbs), while in Indonesia adult fishing cats weigh in at up to approximately 6 kg (13 lbs). They are stocky of build with medium short legs, and a short muscular tail of one half to one third of the length of the rest of the animal.

Like its closest relative, the Leopard Cat, the Fishing Cat lives along rivers, brooks and mangrove swamps. It is well adapted to this habitat, being an eager and skilled swimmer(!!!!!!).

In Russia sometimes they dare to have wild animals like pets.

There are no any law regulations on what pets you can keep and what you can’t, no PETA, no need to pick up your little friend’s poo in special bags. You can walk with your pet anywhere on the street or public park, no any single “no pets allowed” signs outside. Some call it chaos others call it freedom, you decide yourself.

Meanwhile some photos of such wild pet living with people in just a small regular flat in big multistored building.

Tags: fishing cats, indonesia adult, mainland southeast asia, mangrove swamps, skilled swimmer

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Coffee can be the treatment of senile dementia

Posted by watertree under Health living

5 cups of coffee a day can be some memory of the treatment of diseases such as Alzheimer’s. This is a recent University of Florida a group of U.S. researchers found.

The study is still only in the mouse experiments, the caffeine inside the coffee is said to be able to prevent protein plaques have the, protein plaques is the formation of Alzheimer’s disease, the major components.

The researchers trained a total of 55 are suffering from senile dementia of the mouse, and then half of the rats to drink coffee, half of the rats to drink ordinary water. Two months later, the mice drink coffee every day in the memory test were significantly higher than the performance of the mice to drink water.

By observing that a cup of coffee, the mouse brain, causing dementia in some form of the protein decreased. Therefore, in order not to become stupid, on a cup of coffee!

BBC Link

Drinking five cups of coffee a day could reverse memory problems seen in Alzheimer’s disease, US scientists say.

The Florida research, carried out on mice, also suggested caffeine hampered the production of the protein plaques which are the hallmark of the disease.

Previous research has also suggested a protective effect from caffeine.

But British experts said the Journal of Alzheimer’s disease study did not mean that dementia patients should start using caffeine supplements.

The 55 mice used in the University of South Florida study had been bred to develop symptoms of Alzheimer’s disease.

First the researchers used behavioural tests to confirm the mice were exhibiting signs of memory impairment when they were aged 18 to 19 months, the equivalent to humans being about 70.

Then they gave half the mice caffeine in their drinking water. The rest were given plain water.

The mice were given the equivalent of five 8 oz (227 grams) cups of coffee a day – about 500 milligrams of caffeine.

The researchers say this is the same as is found in two cups of “specialty” coffees such as lattes or cappuccinos from coffee shops, 14 cups of tea, or 20 soft drinks.

When the mice were tested again after two months, those who were given the caffeine performed much better on tests measuring their memory and thinking skills and performed as well as mice of the same age without dementia.

Those drinking plain water continued to do poorly on the tests.

In addition, the brains of the mice given caffeine showed nearly a 50% reduction in levels of the beta amyloid protein, which forms destructive clumps in the brains of dementia patients.

Further tests suggested caffeine affects the production of both the enzymes needed to produce beta amyloid.

The researchers also suggest that caffeine suppresses inflammatory changes in the brain that lead to an overabundance of the protein.

Earlier research by the same team had shown younger mice, who had also been bred to develop Alzheimer’s but who were given caffeine in their early adulthood, were protected against the onset of memory problems.

‘Safe drug’

Dr Gary Arendash, who led the latest study, told the BBC: “The results are particularly exciting in that a reversal of pre-existing memory impairment is more difficult to achieve.

“They provide evidence that caffeine could be a viable ‘treatment’ for established Alzheimer’s disease and not simply a protective strategy.

“That’s important because caffeine is a safe drug for most people, it easily enters the brain, and it appears to directly affect the disease process.”

The team now hope to begin human trials of caffeine to see if the mouse findings are replicated in people.

They do not know if a lower amount of caffeine would be as effective, but said most people could safely consume the 500 milligrams per day.

However they said people with high blood pressure, and pregnant women, should limit their daily caffeine intake.

Rebecca Wood, chief executive of the Alzheimer’s Research Trust, said: “In this study on mice with symptoms of Alzheimer’s, researchers found that caffeine boosted their memory. We need to do more research to find out whether this effect will be seen in people.

“It is too early to say whether drinking coffee or taking caffeine supplements will help people with Alzheimer’s.

Neil Hunt, chief executive of the Alzheimer’s Society, said previous research into caffeine had suggested it could delay Alzheimer’s disease and even protect against vascular dementia.

“This research in mice suggests that coffee may actually reverse some element of memory impairment.

“However much more research is needed to determine whether drinking coffee has the same impact in people.

“It is too soon to say whether a cup of coffee is anything more than a pleasant pick me up.”

Tags: dementia patients, senile dementia, south florida study, specialty coffees, university of south florida

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