But man is a very complicated life, subject to various external environments and even heredity.
Okay, let's just say. A healthy person has no history of genetic diseases, no smoking or drinking, no bad habits, no ups and downs in life and no major events. You can refer to the upper limit of how long the elderly can live in the world.
But in fact, this life is very difficult. First of all, many diseases depend on the heredity of the body, as well as environmental factors and personal physical quality. Maybe a person doesn't smoke or drink, but his family history is not long, and maybe his life will not be long. Some people in poor health have low immunity to foreign diseases. For example, people who have a cold should drink boiled water for a week. If I don't get an injection to reduce inflammation, I will definitely burn into pneumonia. Even if I didn't smoke or drink, I might have died in a few days in ancient times.
There are more risks and accidents in life. Pursuing health and longevity must be the common aspiration of mankind.
But life is so unpredictable, why should we emphasize that it is best for people not to smoke or drink all their lives? That's because people are intelligent animals and will try their best to control risks. Smoking and drinking are also one of the main sources of human diseases, so we can control them as much as possible. This is also the reason why people are human wisdom.
It is really irresponsible of you to refute the person who advised you with "some people don't smoke or drink all their lives and have no bad habits, but their life span is short" and "some people smoke and drink but live a long life". Because life is your own, most of the risks in life need to be controlled by yourself. Do everything by yourself!