Ask unlimited questions for free
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
For a complete list of videos, visit our video library