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What is the most suitable temperature for human body?

After millions of years of evolution, human beings have trained a temperature regulation system that "responds to changes with constancy", thus surviving and reproducing in the changeable nature. In order to live a healthier and longer life, researchers at all times and in all over the world have explored and thought about "the best temperature for human activities" for countless times. Keeping in mind a set of "Table of Optimum Temperature" will help you prolong your life. What is the most suitable temperature for human body? Let's have a look.

 

The best body temperature: 37 ℃. The normal body temperature is 37 ℃, but it fluctuates within 1 ℃. Generally speaking, the body temperature is the lowest in the morning and the highest in the afternoon. The body temperature will also be affected by many factors. For example, the body temperature of women will rise after ovulation and continue until the next menstruation, which is related to the secretion of sex hormones; Due to the slow metabolism of the elderly, their body temperature will be low, so they should pay attention to keeping warm; When you are nervous and emotional, your body temperature will rise by 2 ℃ at most. At this time, you can try to sit still, and your body temperature will naturally drop.

 

Optimum room temperature: 20 ℃. Bama Yao Autonomous County in Guangxi is the hometown of longevity respected by the World Health Organization. The annual average temperature there is about 20 ℃, which is conducive to longevity. When the room temperature is lower than 4 ℃, people will feel cold; When the room temperature exceeds 35 ℃, the heart beats faster and the blood circulation accelerates. It is easy to get dizzy and sleepy. The best sleeping room temperature is about 20 ℃. When the room temperature is above 24 ℃, the sleep becomes shallow, and the times of turning over and pushing the quilt will increase. When the room temperature is below 18 ℃, people are not easy to sleep deeply. It is difficult to keep the room temperature constant in winter and summer, but it should be no less than 16 ℃ in winter and 25 ℃ ~27 ℃ in summer.

 

The best eating temperature: 35 ℃ ~50 ℃. The best temperature for salivary enzymes in oral cavity is 37 ℃. Eating overheated food will destroy it, which is not conducive to digestion. In addition, the esophageal mucosa is very delicate. It can tolerate food of 50 ℃ ~60 ℃ at most. Overheating will damage the mucosa and induce cancer over time. Eating cold food will cause rapid contraction of gastrointestinal blood vessels, affect the digestion and absorption of food, and induce chronic stomach pain, diarrhea, malnutrition, etc. Sun Simiao, a famous ancient Chinese doctor, pointed out in Qian Jin Fang that "hot food injures bones, cold food injures lungs, hot lips do not burn, and cold teeth do not have ice." That is to say, you should choose an appropriate temperature for eating. Hot food should not burn your lips. Cold food should not make your teeth ache.

 

The best water drinking temperature: 18 ℃ ~45 ℃. Studies have confirmed that drinking hot water for a long time will damage oral mucosa, enamel and throat, and increase the incidence rate of esophageal cancer. The British Daily Mail has published a number of international authoritative studies that pointed out that tea is hot when its temperature is higher than 68.8 ℃, and long-term drinking will increase the risk of esophageal cancer by 8 times. Even in winter, people should not drink water above 50 ℃. The nutritional value and taste of drinks are also related to temperature. The best temperature of honey water is 50 ℃, too hot will damage nutrition; Red wine tastes good at about 18 ℃; Milk should not be boiled at high temperature for a long time. It can be sterilized at 60 ℃ ~70 ℃. It is best to drink it after cooling.

 

The best bath temperature: 35 ℃ ~40 ℃. An Australian study pointed out that men and women have different bath temperatures. Men are afraid of heat and women are afraid of cold. Therefore, women take hot baths more often than men. It is suitable to take a bath with 39 ℃ water that feels slightly hot. It helps clean the skin, enhance metabolism and eliminate fatigue. Too high water temperature will damage the skin protective layer and reduce the skin's resistance to bacteria. Men should not take hot baths or saunas frequently. High temperature will damage the sperm growth environment. It is appropriate to take 15-20 minutes once a week. Many people also advocate cold water bath, which can enhance cardiopulmonary function and immunity, but the water temperature should not be lower than about 20 ℃, especially the frail elderly, children and women in menstruation.

 

The best feet soaking temperature: 38 ℃ ~45 ℃. As the saying goes, "washing feet in hot water is like taking tonic". The foot temperature is the lowest in the human body, so the foot soaking water can be a little hot, which can promote the expansion of blood vessels in the foot and lower limbs, alleviate fatigue and facilitate sleep. Women tend to be cold, and the water temperature can be a little hot. But don't just scald your feet with hot water. It should be about 40 ℃, especially for patients with diabetes. The water temperature for washing your feet should not exceed 37 ℃.

 

The best face washing temperature: 20 ℃ ~38 ℃. People with non oily skin and mixed skin can wash their faces with warm water higher than 30 ℃. If they feel warm and do not feel hot, they can not only wash away floating dust, but also open their pores, which is conducive to deep cleaning. When the water temperature is too hot, the facial skin is easy to dry and there are fine lines. When the water temperature is lower than 20 ℃, although it has astringent effect on the skin and makes people excited, it will cause skin vasoconstriction, pale skin color and weakened elasticity.

 

The best hair washing temperature: 36 ℃ ~40 ℃. A British survey found that the closer the shampoo water temperature is to the body temperature, the better, and 36 ℃ ~40 ℃ is the best. Traditional Chinese medicine believes that "the head is the meeting of all Yang". Washing your hair with too hot water will accelerate the blood flow, cause dizziness, and wash away the oil on the scalp, causing the hair to lose luster and the scalp to itch. Cold water stimulation will cause contraction of scalp pores and blood vessels, affect blood and oxygen supply to the brain, and increase blood pressure. Washing your hair with cold water for a long time will also lead to poor blood circulation and headache.

 

The best teeth brushing temperature: 35 ℃. Warm water at about 35 ℃ has a protective effect on the oral cavity, will not stimulate the teeth to cool and heat suddenly, and can avoid gum bleeding and dental nerve spasm.

 

Meanwhile, you can monitor your body temperature by digital thermometers everyday which connect with APP to record and analyse your temperature data. Then you will know a lot about your own body condition.

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