• inboxity : Hoax

The Seven Great Medical Myths Exposed

Exposed: The seven great medical myths

They are among medicine's most widely held beliefs drinking eight glasses of water a day is essential for health, shaving hair makes it grow back coarser, reading in a dim light ruins eyesight. Yet despite their popularity, they are myths.

1. Drink at least eight glasses of water a day
This advice derives from a 1945 recommendation that adults should consume 2.5 litres of the stuff daily, or one millilitre for every calorie consumed. The crucial part of the recommendation "most of this quantity is contained in prepared foods" is often ignored. Drinking too much water can be dangerous.

2. Reading in dim light ruins your eyesight
It causes eye strain, difficulty in focusing and dries the eyes because of reduced blinking while squinting but there is no evidence it causes lasting damage.

3. We only use 10 per cent of our brains
Studies of patients with brain damage suggest damage to any area of the brain has lasting effects. Brain imaging studies have shown no area of the brain is completely inactive and despite "detailed probing" the non-functioning 90 per cent has not been located.

4. Hair and fingernails continue to grow after death
They don't. It is an illusion caused by the dehydration of the body which results in the skin retracting. This gives the appearance of increased length to the hair and nails actual growth requires hormonal regulation which is not sustained after death.

5. Shaving causes hair to grow back faster or coarser
Shaved hair lacks the finer taper seen at the end of unshaved hair. It has also not been lightened by the sun, so it appears darker.

6. Mobile phones are dangerous in hospitals
Many hospitals still ban them, despite the lack of evidence that they interfere with electronic equipment, except in rare instances and at close quarters. Technological improvements have reduced the risk further.

7. Eating turkey makes people drowsy
This myth is based on the assertion that turkey contains high amounts of tryptophan, an amino acid involved in sleep. But turkey contains no more than chicken or beef. Its sleep-inducing effects are due to the quantities eaten.

Stumble Button Facebook Button Del.icio.us Button Digg Button Google Button

Tags: seven medical myths exposed water glasses light fingernails funny hair hoax shaving mobile turkey phones

Top 20 new inboxity items

True friends Views: 26976
Funky Urban Underwear Views: 22886
Trycoxagain: New Drug for Depressed Lesbians Views: 31939
Happy New Year's Greetings Views: 16895
Top 10 Jamaican Positions Views: 36866
Jamaican Puppets - My Man Views: 14688
Lady Leave Me Alone I'm Married Views: 48872
You Better Come Get Santa Views: 22502
Backwoods Camping and Fishing Trip Views: 24651
Horny Donkey Rapes Man Views: 20128
Speed Sex Olympics Views: 22038
Human Blow Up Doll Views: 17989
World Cup 2010 Re-Match Germany vs Australia Views: 17845
When I was born I was so surprised Views: 23957
Woman Wakes Up to find Intruder in her Bed Views: 20682
Auto tuned news - Antoine Dodson Views: 9063
Powerful Camera Face Detection Feature Views: 14145
Funny Renault Clio Commercial Views: 11189
Proof that Women never Listen Views: 30107
Vacancy at the FBI Assassin Views: 23168

Views: 3557
Shared: 2 times

Rate this forward:

  • Currently 3/5 Stars.
  • 1
  • 2
  • 3
  • 4
  • 5

(14 Ratings)