Throughout the ages, mankind has accumulated a lot of life experience. Over time, these experiences have been transformed into a healthy culture. However, the dissemination of information will always encounter a true and false melee. So, what is misinformation and what is true knowledge? Today, we will test five health-keeping proverbs.

1, an apple a day keeps the doctor away.

True or false: Although this statement is somewhat exaggerated, apples are really good for health. It is rich in antioxidants, which can reduce the risk of some cancers and chronic diseases. In addition, the fiber in apples can effectively lower cholesterol, help reduce calories and help to lose weight.

Expert's new solution: Make sure to eat an apple every day, but don't stop there. Try to eat 5 to 9 different colors of fruits and vegetables every day to get different antioxidants.

Sitting too close to watching TV is harmful to your eyesight.

True or false: actually not. It won't hurt your eyes. The chief culprit of people's eyesight decline is mainly age.

Experts' new explanation: after 40 years old, people's eyes can't focus at close range. Therefore, the distance to watch TV should be clear, and there is no so-called optimal distance.

3, a cold to eat, a fever to be hungry.

True or false: That makes sense. In 2002, a Dutch study showed that fasting all night can really increase the number of cells that resist fever.

New explanation from experts: Don't stop eating because of this proverb. Proper diet helps to maintain physical strength when you are sick, and drinking more water can prevent water shortage and dilute body fluids that may cause congestion.

4. Pull out one white hair and grow two.

True or false: completely wrong. With the increase of age, melanocytes decrease or cannot be transmitted to the hair tips, which leads to the appearance of white hair, which has nothing to do with pulling out white hair.

Experts' new explanation: the way to reduce white hair is to dye hair, but skin test should be carried out before dyeing hair. Some tonics can also delay the growth of white hair.

5, wet hair in winter is easy to catch a cold.

True or false: Maybe. Two years ago, scientists divided 180 people into two groups. One group soaked their feet in cold water, and the risk of catching a cold in this group tripled.

Experts' new explanation: Don't be too afraid, just wash your hair before going out. But before the flu season comes, you should be vaccinated and plan ahead.

There must be a way to maintain health, and there is no way to achieve nothing. Health proverbs are true and false. I hope everyone has a pair of scientific eyes to distinguish. Don't fall into the misunderstanding of health preservation.