Benefits: Reduces fat: Want to lose weight ? Then drink more water. Water increases the body's metabolism. Especially when you drink ice cold water, the body burns extra calories to keep it warm and in this process some fat is reduced. Water gives the feeling of being full. So if you drink a glass of water before eating, your stomach will be full and you will not overeat. As a result, extra calories are not added to the body. Reduces Weakness: Drinking water reduces physical weakness instantly. When there is a lack of water in the body, the body feels quite weak. Especially through sweat all the water comes out of the body and weakens the body. Drinking enough water stimulates the circulatory system of the heart and eliminates fatigue in the body. Reduces stress: 70% to 80% of brain tissue is replenished with water. And so when the body does not have enough water, people suffer from depression. So if you want to keep your mind fresh and vibrant, drink plenty of water. Keeps muscles well: Water builds muscle. In addition to this , it is important to have enough water in the body to get rid of the problem of muscle stiffness and tension. Especially those who exercise regularly should drink plenty of water every day. Disadvantages: 1) Excess water intake can increase your body's total blood volume. And if the blood volume increases, it will affect the whole body. This extra volume of blood will put extra pressure on the heart and blood vessels in particular. 2) Our kidneys filter water in a strict manner every day. Drinking extra water puts extra pressure on the kidneys. Excessive pressure disrupts the body's filtration system. As a result, both the kidneys can become crippled in a short time which is very risky for health. 3) If you drink excess water in a very short time, the level of electrolyte in the blood suddenly goes down excessively. But the electrolyte level of the cell remains the same. As a result, some of the water in the blood enters the cells to balance the blood and the electrolytes in the cells and the body is more likely to swell suddenly. This effect falls on the top of the brain and results in headaches and breathing problems.