Excessive weekend sleep increases kidney disease risk

Medical experts are warning that attempting to compensate for weekday sleep deprivation by sleeping excessively on weekends can significantly damage kidney health. Research suggests that irregular “catch-up” sleep can increase the risk of chronic kidney disease and proteinuria by 14 to 20 percent.

Nephrologist Dr. Hung Yung-Hsiang identified three primary mechanisms behind this damage. First, extremely long, uninterrupted sleep can lead to significant dehydration because the body receives no water intake for many hours. This can result in thicker blood and reduced renal blood flow, placing additional strain on the kidneys during the blood purification process.

The severity of these risks was illustrated by the case of a 35-year-old engineer who attempted to make up for late-night work shifts by sleeping more than twelve hours on weekends. A routine examination revealed a drop in his glomerular filtration rate from 95 to 72, alongside the presence of protein in his urine.