Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
Your heart rate can rise as much as 30% during a yawn.
69
A woman's sense of smell is most sensitive during ovulation.
34
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
Deep Breathing gives you health benefits similar to aerobics.
39
In the average lifetime a person will breath in about 44 pounds of dust.
21