Your body is creating and killing about 2.4 million red blood cells per second.
17
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Mosquitoes don't just bite you, they also pee on you.
11
Lobsters have blue blood.
476
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Your heart will pump about 212 million liters in its lifetime.
26
20 minutes after smoking a cigarette, blood pressure drops to normal.
37