Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
Did you know?
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Selected Antiemetics
The number of words correctly completed in the New York Times crossword puzzle increases with age ...
Selected Oral Contraceptives
A diploma or certificate is proof of education completed.
Biology Forums Topic View (Feb. 2022)
Operations Research