Daijiworld Media Network – New Delhi

New Delhi, Sep 22: Sleep is a biological necessity, and consistently getting less than seven hours a night can have serious health consequences. Chronic sleep deprivation affects the heart, hormones, and increases cancer risk. During deep sleep, the body repairs cells, balances hormones, and strengthens the immune system. Lack of sleep disrupts these processes, leading to cellular damage, inflammation, and weakened immune function.

Studies link reduced sleep to higher risks of hypertension, coronary heart disease, and diabetes. Men who sleep less than four hours nightly have a significantly higher risk of early death, while women under similar conditions also face increased risk. Short sleep also lowers melatonin production, a hormone with antioxidant and anti-cancer properties. This increases vulnerability to cancers such as breast, prostate, and colorectal. A study of over 14,800 adults found that sleeping less than seven hours combined with limited daytime rest raised cancer risk by nearly 70 percent.

Insufficient sleep also impacts the cardiovascular system by keeping blood pressure elevated, increasing inflammation, and stressing arteries, which accelerates plaque buildup. Hormonal disruptions and elevated cortisol levels further compromise heart health. Chronic inflammation caused by sleep deprivation contributes to both heart disease and cancer by promoting arterial blockage, organ damage, and genetic mutations.

Prioritising quality sleep of seven to nine hours per night is crucial. Adequate rest helps the body repair itself, maintain hormonal balance, and reduce the risk of life-threatening diseases. Sleep is essential for long-term health and protection against heart disease and cancer.