Sihai network

The secret that smoking is harmful to health

The secret of the long life of the old smoker is that French Jeanne Kalman is considered to be one of the oldest people in the world. She died at the age of 122. Although the woman continued to exercise until she was 100, she was not very healthy because she had smoked two cigarettes a day since she was 21, and the habit lasted until she was 120.

Morgan Levin, a human genetics expert at UCLA who led the study, said that from a biological point of view, those who have similar living habits with kalmans have special genetic characteristics.

Levin points out that researchers have found a set of genetic markers that promote longevity. He believes that there is evidence that this group of genes can improve human life expectancy by increasing cell maintenance and repair.

Therefore, although some people are under various biological pressures for a long time, such as tobacco, their bodies seem to be able to better cope with and repair the damage caused by these risk factors.

Levin pointed out that finding the gene code to promote longevity in the genome of elderly smokers will help people to prolong their life span and avoid various diseases and physiological defects.

Smoking is an important inducement of lung cancer. The elderly smokers who smoke a lot for a long time have a higher risk of lung cancer than the ordinary people. Even so, some people continue to "puff up the clouds" with fluke mentality.

Family history of lung cancer, long-term smoking, long-term exposure to second-hand smoke environment, long-term exposure to smoke and dust at work are the high-risk groups of lung cancer.

Of course, people who have a healthy lifestyle and no family history have lung cancer.

In fact, everyone carries cancer genes, whether the disease is related to autoimmune function, air pollution and so on. But in general, high-risk groups are more likely to suffer from lung cancer. Therefore, it is suggested that we should develop a healthy lifestyle, try to stay away from alcohol and tobacco, ensure sleep, and do more exercise to reduce the risk of lung cancer.