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
Men have larger hearts; women's hearts beat faster.
77
The average human body contains enough iron to make a small nail.
50
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Like fingerprints, everyone's tongue print is different!
71
Fingernails grow nearly 4 times faster than toenails.
31
Redheads require more anesthesia to 'go under' than other hair colors do.
50