A woman's sense of smell is most sensitive during ovulation.
34
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
A toothbrush within 6 feet of a toilet can get airborne bacteria from flushing.
15
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
A person can live without food for about a month, but only about a week without water.
156
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15