The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
Eugène Delacroix, Liberty Leading the People.
How do you set yourself apart in a country so rich that of its 4.6 million people, 79,000 are ...
The energy set-point view that is the basis of many people’s thinking about hunger and eating.
Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ...
Transatlantic Slave Trade
Sensory Crossover Device for Visually Impaired People