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Friday, July 9, 2010
High doses of caffeine' may increase muscle power
According to a new study, high doses of caffeine may boost muscle power and improve endurance for some types of exercise. On the other hand, the risks may not be worth it. Find out why.Caffeine isn’t for everyone – particularly people who have heart disease or hypertension. On the other hand, the stimulant power of caffeinated beverages may have some positive benefits for athletes. According to a new study, high doses of caffeine boosts muscle power and increases endurance during sustained exercise.
New research shows increased muscle performance in sub-maximal activities, which in humans can range from everyday activities to running a marathon.
With no current regulations in place, the scientists from Coventry University believe their findings may have implications for the use of caffeine in sport to improve performance.
The scientists present their work at the Society for Experimental Biology Annual Meeting in Prague on Wednesday 30th June 2010.
"A very high dosage of caffeine, most likely achieved via tablets, powder or a concentrated liquid, is feasible and might prove attractive to a number of athletes wishing to improve their athletic performance", explains lead researcher, Dr Rob James.
"A small increase in performance via caffeine could mean the difference between a gold medal in the Olympics and an also-ran", he added.
Caffeine is not currently listed by the World Anti-Doping Agency (WADA) as a banned substance at any concentration in blood or urine samples. Before 2004 WADA did set a specific level over which athletes could be banned, but this restriction was removed.
Muscle activity is divided into maximal, where the muscles are pushed to full capacity such as in sprinting or weight lifting, and sub-maximal, which covers all other activities.
A member of the team, Jason Tallis, tested the effect of caffeine on both the power output and endurance of soleus muscles (lower leg muscle) in mice, under both maximal and sub-maximal activities.
He found that a caffeine dosage of 70 µM enhanced power output by ~6% during both types of activity. This effect in humans is likely to be very similar, according to the researchers.
"70 μM caffeine concentration is the absolute maximum that can normally achieved in the blood plasma of a human, however concentrations of 20-50 μM are not unusual in people with high caffeine intakes", explains Dr James.
Resultant caffeine in blood plasma (70μM maximum) may act at receptors on skeletal muscle causing enhanced force production. Scientists already know that ingestion of caffeine can increase athletic performance by stimulating the central nervous system.
Additionally, 70μM caffeine treatment increased endurance during sub-maximal activity, but significantly reduced endurance during maximal activity.
6 Natural Ways' To Increase Sexual Desire
Washington, July 7 : Amy Reiley, one of only two Americans to hold a Masters of Gastronomy degree from Le Cordon Bleu, has revealed top six natural aphrodisiacs that will get you going.
Figs, she says, are loaded with manganese, magnesium, vitamin E and zinc, which are essential for sexual health.
Watermelons contain citrulline, which signals the body to release arginine, which relaxes blood vessels - an effect similar to Viagra.
Champagne is another one on the top. It enters the bloodstream more quickly than wine, so you drink less of it. And with pinot noir or pinot meunier grapes has as many antioxidants as red wine, reports Fox News.
About Rosemary, she said:”If you’re preparing a meal of seduction, you want something that will be easier to digest. You don’t want blood flow diverted to your stomach.”
Chilli Peppers - they replicate symptoms of arousal: flushed cheeks, a tingle on your tongue and plumper, more kissable lips. And they raise body temperature too.
Cheese - releases ten times more endorphins than chocolate, and puts you in the mood.
Reiley adds that the multi-sensory experience of eating, when combined with the right ingredients, nutrients and intentions, makes food positively sexual. And given the frequency with which we eat, that makes food the ultimate aphrodisiac.
Figs, she says, are loaded with manganese, magnesium, vitamin E and zinc, which are essential for sexual health.
Watermelons contain citrulline, which signals the body to release arginine, which relaxes blood vessels - an effect similar to Viagra.
Champagne is another one on the top. It enters the bloodstream more quickly than wine, so you drink less of it. And with pinot noir or pinot meunier grapes has as many antioxidants as red wine, reports Fox News.
About Rosemary, she said:”If you’re preparing a meal of seduction, you want something that will be easier to digest. You don’t want blood flow diverted to your stomach.”
Chilli Peppers - they replicate symptoms of arousal: flushed cheeks, a tingle on your tongue and plumper, more kissable lips. And they raise body temperature too.
Cheese - releases ten times more endorphins than chocolate, and puts you in the mood.Reiley adds that the multi-sensory experience of eating, when combined with the right ingredients, nutrients and intentions, makes food positively sexual. And given the frequency with which we eat, that makes food the ultimate aphrodisiac.
TOAD-Frog is Dangerous Amphibian in the world's
A toad is any of a number of species of amphibians in the order Anura characterized by dry, leathery skin, brown coloration, and wart-like parotoid glands. A distinction between frogs and toads, though common in popular culture, is not made in taxonomy, where toads are spread across families Bufonidae, Bombinatoridae, Discoglossidae, Pelobatidae, Rhinophrynidae, Scaphiopodidae, and Microhylidae. The characteristic features of toads are a result of convergent evolution in dry habitats.Toads cannot transmit warts to people through handling or skin contact. The bumps on a toad's skin help the animal blend into its environment visually by breaking up its outline. They are present on healthy specimens and are not a result of infection.
Unbelievable' Paintings of a Blind Artist
" Beautiful Paintings of a Blind Artist "
The story of this blind artist is extraordinary and unbelievable. Professional CPA with a photographic memory, Lisa Fittipaldi lost her vision due to a vascular disease in 1993. She lost her job too, but overcame blindness and began painting in 1995. Her paintings are so colorful and bright; it’s hard to believe that they were drawn by a blind person who can’t even see colors or distance. The main challenge to Lisa was when she was told she could never create complex scenes of everyday life with people as main characters. But she managed to do so, and today her paintings are exhibited in museums and galleries around the world. Fittipaldi is a unique artist with an amazing inner vision. You can judge for yourself after the jump.
Worlds Most Bizarre and Unique Trees ever
unique art of trees ' i never seen this before: best art of nature .
Founded' Two New Fish Species In Oil Spill Area
July 9: It is amazing but true. Even as tonnes of oil spill in the Gulf of Mexico, experts have discovered' two new fish species in the now polluted waters.A research describes the new species as pancake batfishes, which live in waters either partially or fully.“One of the fishes we describe is completely restricted to the oil spill area,” said John Sparks, curator of Ichthyology at the American Museum of Natural History.
“If we are still finding new species of fishes in the Gulf, imagine how much diversity - especially microdiversity - is out there that we do not know about.”
Pancake batfishes are members of the anglerfish family Ogcocephalidae, a group of about 70 species of flat bottom-dwellers that often live in deep, perpetually dark waters, says a release from the American Museum.
Pancake batfishes have enormous heads and mouths that can thrust forward. This, combined with their ability to cryptically blend in with their surroundings, gives them an advantage for capturing prey.
