Flu shots only work about 70% of the time.
18
The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
Only 1% of bacteria cause disease.
45
On average, women have always lived longer than men.
195
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human sigh acts as a physiological reset button.
23