Why do you urinate less during the day and more at night?

In general, the metabolism of the kidneys at night will be slower, and the amount of urine formed will be much less than that during the day. After the renal function is damaged, the filtration function of the glomerulus and renal tubules will show abnormalities, and the amount of urine formed at night will increase, so it will show that there is less urine during the day and more urine at night. In addition, less urine during the day and more urine at night can also be caused by physiological reasons. If the weather is hot during the day, sweating is more, the amount of urine will be less, drinking too much water before going to bed, and water will be excreted through urine, which will increase the number of nocturnal urine.