The life span of the back of a man's head is very short.

According to scientific research, a man with a ditch in the back of his head is not necessarily short-lived.

There is a Sichuan-shaped groove in the back of the head, which is actually a kind of skull shape. Everyone's skull shape is unique, and the depth of the groove in the back of the head is also different. This does not mean that it will affect life.

Therefore, you don't have to worry too much about the problem that the groove in the back of your head will affect your life. Only by maintaining a healthy lifestyle and paying attention to the balance between diet and exercise can we better maintain our health.