Most of us have pushed through a busy week on too little sleep, but deep down we know it never feels right. That heavy-eyed fog can make even simple tasks harder, and now one doctor says it may be far more dangerous than we think.
Dr. Dan Friederich, a popular TikTok doctor, warns that getting only four or five hours of sleep a night can shorten your life. He explains that adults generally need between six and eight hours of rest, with seven being ideal. Anything less than five hours, he says, puts serious stress on the body.
Studies back this up. Research from University College London found older adults who slept less than five hours faced a much higher risk of early death. They also discovered a strong link between short sleep and multiple long-term health problems.
The turning point comes when lack of sleep begins to affect the heart, brain, and immune system. According to experts, poor sleep can raise the risk of cardiovascular disease and many other serious conditions. It’s a small habit with very big consequences.
Thankfully, Dr. Friederich also shares simple steps to improve sleep. He recommends keeping the bedroom cool, dark, and quiet, avoiding big meals before bed, and limiting screens at night. Gentle exercise and natural daylight during the day can also help reset the body’s rhythm.
It may feel impossible some days, but protecting your rest is one of the kindest gifts you can give yourself. A good night’s sleep is more than comfort—it’s a quiet promise of better health ahead.
