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Why Is Less Than 6 Hours Of Sleep More Deadly Than Bad Diet? Can Take Your Life Prematurely

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Nitu Kumari
Contributor
January 20, 2026

Gym and diet are all useless if sleep is bad (Image Source: AI-Generated)

Lifestyle Desk, New Delhi. We are often very cautious about our diet and step counts, but new research shows that we are ignoring the most important and deadly pillar of health and that is our sleep.

According to Dr. Sudhir Kumar, Senior Neurologist, Apollo Hospital, continuous poor sleep (less than 6 hours) can be a major cause of early death. This danger can be more serious than poor eating habits or lack of physical activity. Come, let us understand this in detail.

Your brain gets cleaned during sleep

From a neurological point of view, sleep is not just rest. When you sleep, your brain's 'waste clearance system' (called the glymphatic system) becomes active. This system removes neurotoxins or toxins like 'beta-amyloid' from the brain. If you don't sleep enough, this cleansing doesn't take place and your brain is left literally 'dirty' inside.

🚨 Why 5 hours of sleep is riskier than a skipped workout.We often obsess over our diet and step counts, but new research suggests we are ignoring the most lethal pillar of health: Sleep.A landmark study (2025) comparing lifestyle risk factors has revealed a startling… pic.twitter.com/aF4DKXxege

The 'triple threat' of lack of sleep

Lack of sleep attacks the body in three ways:

Doctors say that you cannot repay your sleep debt by running or having a good diet. That is, if you are sleeping less, sweating in the gym or eating salad cannot compensate for that loss. For this you will need to work on your sleep cycle.

Also read- The secret of long life is known, just 5 minutes extra sleep and 2 minutes walk every day will change your life.

Also read- Staying awake till after 11 pm can increase waist width, even diet and exercise will not reduce weight.

Chyawanprash is a part of every Indian's life, it reduces diseases and increases energy.

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