Blood is blue and turns red when exposed to air - Deepstash

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The 9 Biggest Health Myths Debunked

Blood is blue and turns red when exposed to air

There is no such thing as blue blood. Blood appearing blue is an optical illusion. The maroon red color appears blue because light is diffused through the skin.

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Drink 8 Glasses of Water a Day

Everyone has a different requirement for water. Temperature, humidity, size, age, gender and activity have an influence on your fluid needs.

Instead, drink when you are thirsty.

Eggs Harm Your Heart

Eggs have a lot of cholesterol compared to other foods. Although cholesterol in the blood is strongly related to heart disease, eating cholesterol is weakly associated with raising the cholesterol levels in your blood.

Eggs have other heart-protecting properties and eating it probably won't harm your heart.

Cancer or Alzheimer’s From Antiperspirant
  • A chain email in the 1990s was responsible for the false belief that antiperspirant was raising the risk of breast cancer. 
  • When researchers found higher ratios of aluminum in the brains of Alzheimer's patients, aluminum in antiperspirant was suspect. But it seems aluminum in antiperspirant is hardly absorbed by your skin.

Your hands are never going to be clean
Your hands are never going to be clean

There are just too many things living on our hands to wash all of them off.
Killing all the microbes on your hands has never even been the point of hand-washing. The point is to get as big a ...

The numerical oddities

The Centers for Disease Control and Prevention says to wash your hands for 20 seconds. The World Health Organization says hand-washing should take 40 to 60 seconds. And it's complicated to determine who is right.
The optimal length of time for hand-washing is likely to depend on many factors, including the type and amount of dirt on the hands and the setting of the person washing hands (temperature of water, washing technique, the type of soap, etc.)

Logarithmic reduction

Food safety researchers have to think in orders of magnitude, by necessity. Instead of aiming to completely wipe out a population of microbes, they’re trying to achieve a relative decrease as measured in orders of 10.
A 1-log reduction would be a 10-fold decrease — so, 90 percent fewer germs. A 2-log reduction is a 100-fold decrease — so 99 percent fewer germs — and 3-log is 1,000 times less, or 99.9 percent fewer. You get the picture.

Sore Is Not Always Good

While it feels satisfying to have sore, aching limbs, and a sign of a good workout. This is entirely unnecessary and one can eliminate the soreness by doing slow reps, or avoiding eccentric (muscle...

Heavy Lifting For Bulk

One can get stronger by increasing the size of the individual muscle fibers, and by recruiting more of the muscle fiber to work together when needed. 

A bulky body is also considered a negative in certain sports. Getting bulky is a specific, targeted training which includes high-volume exercises, calorie intake, and protein supplements, and cannot be attained by simply lifting heavier weights.

Using Scales

Scales are actually useful in providing you with information about your general progress and direction.