A woman's sense of smell is most sensitive during ovulation.
34
On average, there's 100 billion neurons in the human brain.
83
The human body contains over a billion miles of DNA.
147
Your thumb is about the same size as your nose.
124
It takes about 20 seconds for a red blood cell to circle the whole body.
102
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31