The average sperm cell swims at 8 inches per hour.
4
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
It takes about 20 seconds for a red blood cell to circle the whole body.
102
On average, women have always lived longer than men.
195
Contrary to popular beliefs, chocolate does not cause acne.
63
Lack of water is the #1 trigger of daytime fatigue.
148
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15