Yawns are more contagious among people with closer relationships.
163
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Enamel is hardest substance in the human body.
61
Our Right Lungs takes more air than our left lung.
194
Every year your body replaces 98% of your atoms.
119