Many body parts that our ancestors may have once needed that no longer serve any purpose, but hang around anyway and sometimes cause problems!
Tonsils form a part of the lymphatic system, which is important for our immune system. But testament to their usefulness is the number of people who have them removed every year without any difference to their health. Not only are they prone to infection, but can also get cancer, too.
2. The appendix
Talking of getting organs removed, the appendix is another one many people have taken out. The appendix is attached to the large intestine, but its function has stumped scientists. Some say it’s completely useless; another theory is that it stores good bacteria to reboot into the system after bouts of diarrhea.
3. Wisdom teeth
These teeth usually come in between the ages of 17 and 25, but a lot of people end up getting them removed at the dentists. This is because there isn’t any room for them in the mouth. It’s thought wisdom teeth were used by our ancestors to break down certain foods – but we don’t need them now.
4. Male nipples
It’s rather obvious why women have nipples, but men don’t typically breastfeed their babies. The reason males have them is because every foetus starts off the same – and the female body is the initial template.
5. Body hair
Our ancestors needed body hair to protect them and keep them warm, whereas we spend years of our life trying to get rid of it.