It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Your thumb is about the same size as your nose.
124
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human brain doesn't stop developing until about 25 years old.
102
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149