The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Your heart will pump about 212 million liters in its lifetime.
26
Your heart rate can rise as much as 30% during a yawn.
69
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
You see your nose at all times, your brain just chooses to ignore it.
30
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
People that suffer from gum disease are twice as likely to have a stroke or heart attack.
22
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139