Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
A sneeze can travel as fast as 100 miles per hour.
43
One or two alcohol drinks a day can be anti-inflammatory.
75
The average person's skin weighs twice as much as their brain.
131
It takes 17 muscles to smile, 43 to frown.
65
The male fetus is capable of attaining an erection during the last trimester.
75
‘Fracture putty’ is a material being developed that when packed in & around a bone fracture, provides full load bearing strength within days.
8

