1. Ancient Roman surgeons were trained to block out the screams of human pain.
2. Humans have been performing dentistry since 7000 BC, which makes dentistry one of the oldest professions
3. Humans shed 40 pounds of skin in their lifetime, completely replacing their outer skin every month.
4 More than 2,500 left-handed people are killed every year from using equipment meant for right-handed people.
2. Humans have been performing dentistry since 7000 BC, which makes dentistry one of the oldest professions
3. Humans shed 40 pounds of skin in their lifetime, completely replacing their outer skin every month.
4 More than 2,500 left-handed people are killed every year from using equipment meant for right-handed people.