Can you really believe those "several characteristics of longevity" on the Internet?

When I saw this problem, I didn't know what the characteristics of longevity my friends saw, because the Internet is a mixed platform. Some things are credible, some things are not, but the words of regular doctors are completely credible. If it's a rumor, let's take it as a joke. However, in real life, people who live long actually have some common characteristics, such as the following.

1 This is very important, that is, the temper and personality are softer and the mind is more open. I believe that friends can meet two or three such people or even more in their daily communication with friends. They have a normal mind about everything, and they are not too excited about the difficulties and setbacks they face, but only calmly deal with them. Such people are particularly easy to satisfy. Moreover, science has proved that temperament is directly related to longevity, and a good attitude can prolong life.

The second point is also very important. I usually pay more attention to my diet and don't eat too much every day. In real life, many doctors have interviewed long-lived elderly people. Their unique secret is that they don't eat too much every day, they will keep seven points full at every meal, and they can control their appetite, never overeating, and they will mix vegetarian and vegetarian foods and not be picky about food.

The third point is that there is always a positive side to life. Many long-lived old people like to laugh, and some happy things in daily life are also expressed through laughter. If they face some heart-to-heart things, they will not be too anxious.

The fourth point can be introspective, that is, people who live long will not be thin or fat. As we all know, obesity can easily lead to heart disease, hypertension and diabetes. Being too thin can easily lead to gastrointestinal diseases, so check yourself. If you are of medium height, you have the gene of longevity.