If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
Pain occurs when sounds are above 130 db.
124
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92