When you take a step, you are using up to 200 muscles.
886
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Your heart will pump about 212 million liters in its lifetime.
26
Enamel is hardest substance in the human body.
61
The human brain doesn't stop developing until about 25 years old.
102
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Your body is creating and killing about 2.4 million red blood cells per second.
17