Many long-lived old people have a * * * nature, that is, they have a good attitude, can be open-minded and enthusiastic, and live a full and satisfied life.

The key to delaying aging is a good attitude. Some people live long because of their dull mood, while others are not old because of their eternal curiosity.

People will always encounter some unpleasant things. Talking with three or two friends and comforting each other can make people feel comfortable and play an important role in maintaining mental health.