You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Held in farts enter your bloodstream and are bad for your body.
26
If you hold farts in during the day, they'll just come out when you sleep.
16
A human being loses an average of 40 to 100 strands of hair a day.
133
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130