Human teeth are almost as hard as rocks!
47
When a person dies, hearing is usually the last sense to go.
124
The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
Redheads require up to 20% more anesthesia to be knocked out.
112
The average female will have 3.3 pregnancies in her life.
49
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Fingernails grow fastest on the hand you favor.
44
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8