Yawns are more contagious among people with closer relationships.
163
It takes approximately 12 hours for food to entirely digest.
93
Enamel is hardest substance in the human body.
61
The human brain has the capacity to store everything that you experience.
4k
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The average person's skin weighs twice as much as their brain.
131
The human brain uses approximately as much energy as a 10 watt light bulb.
120