The human brain is more active during sleep than during the day.
28
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
You inhale about 700,000 of your own skin flakes each day.
29
The lifespan of a tastebud is ten days.
130
The average human body contains enough iron to make a small nail.
50
Redheads require more anesthesia to 'go under' than other hair colors do.
50
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23