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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.