How long can a person go without a meal, and how long can a person go without a meal?

Normal people can go without food for about 1 week, but they must need to drink water. Some people are on the fat side, and those with more fat can even go up to 1 month without eating. Current global world records show that the highest record for a person can be as long as 90 days to sustain life on drinking water alone.

But if you don't drink water, the human body won't live for 3 days.

However, skipping meals will cause great damage to the human body, and even lead to organ failure, so the consequences of not eating or drinking are very serious, don't try, life and health are the most important.

It is said that you can go without lunch for 7 days, but I haven't tried it, so I can't tell you for sure.

1. Ordinary people can live for three days if they don't drink water or replenish water through other means, and they can live for 1 or 2 weeks if they only drink water and don't eat.

2. Under normal circumstances, the human body has to replenish water every day to make hidden parts, water is an important substance required by organisms, more than 65% of the weight of the human body is water, and many biochemical reactions in the human body require the participation of water, such as the hydrolysis of sugar, respiration, etc.

3. In the process of human metabolism, many wastes will be produced and leave the human body through the sweat system, urinary system, etc., which makes the human body need to replenish a large amount of fresh water every day to maintain the normal operation of metabolism.

4. For an adult, Tanqin Hall needs to replenish 2000 2500 ml (7 9 cups) of water every day, and there is no organ in the human body that specializes in storing water, so the human body will feel thirsty soon after drinking water; However, the human body can store energy in the form of fats and sugars, and release energy when needed to meet the needs of the human body.

It varies from person to person, and normal people can generally last for more than 7 days as long as they have water to drink.

Theoretically, a person can go without eating for about a month.

But it is often the spirit that breaks down first.

Most people can't make it to the point where they break down the proteins that make up them.

When a person is hungry, the order of energy supply is ATP, followed by blood sugar, glycogen, and fat. And then there's the protein building, which is the last thing to break down your muscles for energy.

However, before that, blood glucose cannot be maintained, resulting in vascular osmotic imbalance, which further burdens the internal organs and brain, which are already in a state of exhaustion, and leads to the collapse of the living system.

A starving man has a bone in his throat that breaks, I forgot what to call it.

If there is no water at all, it can only last for about 3 days.

That is, the 72-hour ** time for disaster relief.

The human body itself is losing water, and respiratory loss accounts for a large proportion.

Without eating, one can live for 20 days, without drinking water, one can live for seven days, and without sleeping, one can live for five days.

1. When a person starts not eating or drinking, the contents of the stomach will be completely consumed in the first three hours, and the body's calories will slowly decrease over time. At this time, without the supplement of foreign food, the human body will be fatigued and symptoms such as hypoglycemia will appear. Under normal circumstances, ordinary people can live for about 3-5 days without eating or drinking.

2. When people stop eating, the human body will lack sodium, and the lack of sodium will not be obvious in the early symptoms, such as fatigue, apathy, lack of energy, and even fainting when standing up. After fasting for about three days, hunger pangs decrease or even disappear. The human body supports itself in other ways, such as by the liver extracting liver sugar to convert it into glucose, or extracting fatty acids from fat, or even using protein tissue.

3. Since the brain and nervous system need glucose, if a large amount of glucose is lost, the body will produce ketones. However, some tissues in the brain still only need glucose, so they continue to need protein. The result of continued loss of protein leads to death.