Will a long-lived old man shorten his life?

Old people who live long will lose their lives.

People are used to calling the wrist lines extending from the tiger's mouth to the palm root "lifeline". A sample survey was made in Guangzhou University for the Aged, and it was found that 40% of the elderly over 75 had a short lifeline. In addition, the control experiment of 344 elderly people over 90 years old and 256 elderly people aged 60-90 years old found that the palm lifeline was deep, long and obvious, accounting for 68.8% in the longevity group over 90 years old and 63.8% in the control group aged 60-90 years old, and there was no significant difference between them.

Moreover, among 344 elderly people over 90 years old, 3 1.2% have short, shallow and disordered lifelines. Therefore, lifelines cannot be used to predict life span.

Longevity spot (senile spot) is not a symbol of longevity;

Senile plaque is a typical manifestation of skin aging, which is called seborrheic keratosis in medicine. It is generally believed that besides age and congenital inheritance, senile plaques are also related to excessive fat intake and excessive ultraviolet radiation. A domestic sample survey on the elderly over 60 years old shows that among the people aged 60-69, 6 1.3% have senile plaques, 94.8% are over 90 years old, and almost all centenarians have longevity plaques. It can be seen that longevity spots increase with age, which is not a feature of longevity, but an important sign of skin aging.

On the contrary, senile plaques grow late, indicating that the younger people are, the healthier they are. An American survey also found that the age spots on singers' faces are 8- 10 years later than ordinary people. This is because these people have more facial muscle activity. Therefore, it is suggested that you chew slowly during meals to improve facial blood circulation and skin metabolism and delay the appearance of senile plaques.