Only humans shed emotional tears.
331
The human brain has the capacity to store everything that you experience.
4k
On average, there's 100 billion neurons in the human brain.
83
It takes approximately 12 hours for food to entirely digest.
93
The human eye blinks an average of 4,200,000 times a year.
233
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Human hair and fingernails continue to grow after death.
7