It is best to drink 2 liters (4 kg) of boiled water, purified water, mineral water and light tea every day, but do not use carbonated drinks, fruit juice, etc.
Generally speaking, drinking water can refer to your weight. Every 1 kg body weight can correspond to 30 ml water. If you weigh 60 kg, you'd better add 1.8 liters of water every day. Just drink a cup of boiled water every morning.
Besides, you can't wait until you are thirsty. When the thirst signal appears, your body is seriously short of water. It is best to drink 300ml of water every 1 ~ 1.5 hours.
Are you short of water? You can test yourself.
Is your body short of water? We can test ourselves according to two indicators:
First, urinate at least 5 times a day. Urine volume is one of the important indicators to judge whether there is water shortage. Adults usually excrete 1400 ~ 1500ml of urine every day. Urinating 5~7 times a day means that the body is full of water.
The second is to look at the color of urine. If the urine is black, drink plenty of water quickly. Normal urine should be light yellow, clear and transparent.