Which part of the human body is 'useless'?

Professor Robert Shmerling at Harvard Medical School has just released his views on the least important part of the human body.

In the current medical and scientific circles, there are two schools that rank the importance of parts of the human body, which is the least useful part or which part of the human being may be missing.

Some argue that the least important parts are those that usually go in pairs. For example, if you lose an eye or an ear, it is not a disaster as long as you keep the other one. Losing a lung or a kidney is also not a threat to human life. But some point out that because these parts are so important, one more copy is needed for the body to spare.

Professor Robert Shmerling at Harvard Medical School said: "Reserve is a good thing in case you get sick or injured. When you lose a kidney, the other one has to work harder. Otherwise, you will be in big trouble '.

Another hypothesis is that there are some body parts that are unique to humans but do not seem very important.The appendix is ​​at the top of this list.

But Professor Shmerling notes that the appendix is ​​not an independent part. " The appendix is ​​part of the digestive system. So is the tonsils, it is one of the immune organs in the upper gastrointestinal tract and the respiratory tract. They are also very important. My body will choose the gallbladder. I'm sure I still live quite well without it. "