In fact, what we don't know is that the habit of licking feet is not the patent of grandpa in his 80 s. Many people like to lick their feet at home, but we don't see them. However, this habit is not acquired by us, but we are born with it. According to the research of American scientists, we humans are born with the habit of being alert to the various smells we emit. For example, look back at the color and smell of feces after defecation. Smell your body when you sweat, and so does pinching your feet. It is said that this is because we need to determine whether our body is healthy through these habits. In addition, the elderly after the age of 80 should do the following health care methods:

1, smile often

Some professional scientists have found that smiling often can help us improve our body function and promote the production of dopamine in the body. Moreover, people who often like to laugh will recover very quickly if they get some diseases. There is also an old saying in China: "It is better to take medicine than to laugh often".

Step 2 drink plenty of water

Water is the source of life. Normal adults should keep the habit of drinking 8 glasses of water a day, which is about 2000 ml. Therefore, for middle-aged and elderly people in their 80 s, they should also drink more water according to their own situation. However, it should be noted that if the body function does not allow, then you should try to drink as little as possible.

Step 3 walk more

As we all know, for young people, regular running or brisk walking is very helpful to their health. Middle-aged and elderly people in their 80 s try not to run or walk fast because their physical function is not as good as before. However, we can achieve the effect of fitness by taking regular walks.