Myth 1: The less you wear, the better. Research shows that only when the skin temperature is higher than the ambient temperature can bare skin increase skin radiation and dissipate heat. In hot summer, the highest temperature is generally close to or higher than 37℃, so the skin can't dissipate heat, but will absorb the heat from the external environment, so it will feel hotter in summer.
Myth 2: The darker sunglasses are, the more they can protect your eyes. This view is wrong. If the color of the lens is too dark, it will seriously affect the visibility, and the eyes will be easily damaged because of the difficulty in seeing, but it will not protect the eyes. Experts suggest that lenses should be able to transmit 30% visible light, with gray and green as the best, so as to resist ultraviolet radiation, and have the best visual clarity and the smallest color change of external objects.
Myth 3: Drinking beer in summer can relieve the heat. The summer climate is hot, people sweat more, consume more, and get tired easily. If you drink beer continuously, the feeling of "warmth" brought by alcohol will continue, and the phenomenon of thirst and sweating will be more intense. Not only can not achieve the purpose of relieving summer heat, but it will reduce people's thinking ability and work efficiency.
Myth 4: The sooner you practice in summer, the better. According to experts' research, air pollutants in summer are least likely to spread before 6 am, which is often the peak of pollution. People generally like to do morning exercises in lawns, Woods, flowers and other places with green plants. Before sunrise, because there was no photosynthesis, there was not much fresh oxygen near the green plants, but a lot of carbon dioxide was accumulated. This is obviously not good for human health. Morning exercise in summer should not be earlier than 6 o'clock.
Myth 5: The air conditioner keeps constant temperature. Medical meteorologists have found through experiments that constantly adjusting the room temperature can make people's life temperature regulation mechanism constantly in a "tense state", so as to gradually adapt to the great changes in temperature and improve their self-protection ability, so as not to often catch a cold or suffer from other diseases. In this sense, air conditioning is also a kind of health care product, and the temperature of the whole room should be constantly changed, but the range of change should be controlled between 3℃ and 5℃.
Myth 6: A cold shower is the most comfortable. A cold bath that cools rapidly in summer often makes people "happy for a while and uncomfortable for a few days". Because people absorb a lot of heat when they go out for activities in summer, the pores of human skin are in an "open" state, and bathing "will make the pores of the whole body close quickly, so that the heat can not be distributed and stay in the body, thus causing various diseases.