Staying up late until 1 or 2 a.m. may not immediately impact your health, but doing so regularly can negatively affect the brain and increase the risk of high blood pressure and diabetes.

A 23-year-old man experienced dizziness and weakness on one side of his body due to an ischemic stroke. He had no pre-existing medical conditions but had been smoking since he was 17 and regularly stayed up until 1 or 2 a.m.

My work requires me to stay up late frequently. Does this affect my kidneys and increase the risk of kidney stones? - Nguyen Hoa (46, Hung Yen)

I heard that staying up late often leads to kidney failure. How late is too late for kidney health? (Minh, 30, Ho Chi Minh City)