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during the national day, you get together with friends, stay up all night playing games, and watch tv dramas... go to bed late or sleep little. after staying up late, you always feel like you have a strange smell the next day?

in fact, this is commonly known as “fatigue stinky”!

the smell of fatigue is more pungent than the smell of sweat

"fatigue odor", as the name suggests, refers to body odor caused by physical fatigue. "fatigue odor" often appears in areas where sebaceous glands are concentrated, such as armpits, chest, back, and neck.

the mechanism of "fatigue odor" is different from that of sweat odor. it is not caused by bacteria on the skin surface decomposing sweat, but by "ammonia" in the body.

"ammonia" is a compound of nitrogen and hydrogen. it is a colorless gas at room temperature and has a strong pungent smell.

everyone's body odor is unique, and these body odors are emitted by the "unique fragrance" formed by sweat on the surface of the skin.

the main ingredients of "unique spices" include lactic acid, uric acid, fatty acids, ammonia, etc. due to differences in the proportions of various "flavors", everyone's smell is different.

why does the body stink when we are tired?

1. unusual body odor

in a healthy state, the liver breaks down ammonia produced when the body processes protein, and the broken down ammonia is metabolized in the urine.

however, if a person is in a state of fatigue for a long time, the liver will be exhausted and its ability to decompose ammonia will be weakened. the ammonia remaining in the body will flow to the subcutaneous tissue with the blood flow and can only be excreted with sweat, forming a pungent odor.

2. the body accelerates oil secretion

staying up late will increase androgen levels, and these hormones are good at refueling the sebaceous glands.

because sebaceous glands are mainly concentrated on the face and head, you can obviously feel oily when you put your hands on your face or head after staying up late.

the oil itself is easily oxidized and produces odor. in addition, the oily environment is very suitable for microorganisms to breed and feast. the things they decompose during their activities make the taste even weirder.

3. oral bacteria cause bad breath

every morning when you wake up, you will have a foul smell in your mouth. in fact, this is normal, because saliva secretion will decrease at night, and the ability to flush and clean is weakened, which makes it easier for bacteria to set up camp in the mouth, and the foul taste will not come soon. .

however, if you often stay up late and don't sleep well, the odor may be more obvious.

5 types of people should be especially careful about “fatigue odor”

1. overworked people: physical fatigue affects metabolic function

2. people who are overly stressed: mental fatigue can also affect body metabolism.

3. obese people: if you have fatty liver, your liver function will be easily damaged.

4. people who drink frequently: the liver function is damaged due to decomposing large amounts of alcohol.

5. people with frequent constipation: the accumulation of feces in the body produces ammonia, which then flows to the whole body with the blood.

after staying up late, can i catch up on some sleep?

staying up late is very harmful to the body, and it is impossible to make up for it by catching up on sleep. it can only be said that it is better to catch up on it.

staying up late for a long time will disrupt the body's biological rhythm, so it is recommended that you don't stay up late all the time. it is still acceptable to stay up late once a year.

then some friends can't help but wonder, are there any "tricks" for staying up late?

the best trick is to reduce the length of staying up late. for example, at 24 o'clock, wash and go to bed, and then get up at 7 or 8 o'clock in the morning. this basically guarantees a normal sleep time of 6 to 8 hours. the impact of staying up late once in a while is still limited.

after getting up the next day, strengthen nutrition in the diet and replenish water in time:

try to eat eggs, milk, beef, porridge, vegetables, etc. for breakfast, and eat more fruits such as oranges, apples, etc. to supplement the nutrients lost by staying up late.

eat some dried fruits such as walnuts, dates, longans, and peanuts after meals to fight fatigue.

how to get back to healthy sleep after staying up late?

1. ensure normal work and rest. after staying up late, many people may take a long nap. in fact, this is not good. it will disrupt daily routine and cause changes in sleep rhythm. you can wake up later than usual (half an hour to an hour later).

2. take a nap at noon the next day. at noon on the second day after staying up late, it is recommended to take a nap within half an hour and not too long. if the nap lasts longer than half an hour, the brain may enter a deep sleep state and you will feel more tired when you wake up; if you nap until you wake up naturally, it may affect your sleep at night.

3. prepare before going to bed. before going to bed, you can soak your feet or whole body in hot water to help blood flow and promote sleep. to calm down your mood before going to bed, you can listen to some sleep-inducing soft music or practice yoga to help you sleep better. it is recommended not to go to bed after 23:00.

4. eat a light diet and avoid stimulating drinks. don’t eat too greasy or drink alcohol at night, because everyone eats well during the spring festival, so try to eat lighter at night; don’t drink tea, coffee, cola and other stimulating drinks after 4 pm, 1 hour before going to bed it is best not to smoke.

in short, the damage to the body caused by staying up late is irreversible. if you don’t stay up late or stay up during the spring festival, you can go to bed around 24 o’clock as appropriate. don’t go to bed too late. i wish everyone a good sleep~