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What happens to your body when you sleep until noon every day?

Sleeping until noon every day for long periods of time may seem harmless, but this habit can disrupt biological rhythms and lead to many consequences for physical and mental health.

Báo Thanh niênBáo Thanh niên19/11/2025

Sleeping until noon every day for six months can alter and sometimes disrupt the body's natural biological clock, said Dr. Manjusha Agarwal, an internist at Gleneagles Hospital in Mumbai, India.

Circadian rhythms are the mechanisms that regulate important activities such as sleep, hormones, metabolism and alertness during the day. When the circadian rhythm is out of sync, the body no longer functions according to its natural cycle, leading to various disorders, according to The Indian Express (India).

Điều gì xảy ra với cơ thể khi bạn ngủ đến trưa mỗi ngày? - Ảnh 1.

Sleeping until noon every day for six months can alter and sometimes disrupt the body's natural biological clock.

Photo: AI

Sleeping late reduces the ability to concentrate

According to Dr. Agarwal, although people who sleep until noon can ensure a total sleep duration of 7 to 9 hours, going to bed too late can cause jet lag. This is a condition where the body has difficulty adjusting to the daytime schedule, making the person feel lethargic, less alert and having difficulty concentrating in the morning. In the long run, this directly affects learning and working performance.

Deep and timely sleep helps the body restore energy, regulate hormones and support tissue and muscle regeneration.

On the contrary, sleeping at different times for a long time interrupts the recovery process, causes hormonal disorders and easily makes the skin dull and lifeless.

People who sleep late often feel tired and lose energy in the morning even though they have had enough sleep.

Less exposure to early morning light

Waking up late means your body has less exposure to natural light in the morning.

According to Dr. Agarwal, daylight is an important factor in keeping the biological clock working properly.

People who maintain the habit of sleeping late often tend to be tired all the time, have mood swings and are at high risk of experiencing symptoms of depression.

In addition, staying up late and waking up late disrupts eating and exercise habits. They often eat more at night, eat at irregular times, and participate in less physical activity during the day.

These factors can lead to weight gain, metabolic disturbances, decreased insulin sensitivity, and loss of control of hunger-regulating hormones.

Risk of vitamin D deficiency and cardiovascular disorders

When sleeping until noon, the body loses many hours of exposure to sunlight, leading to a decrease in the ability to synthesize natural vitamin D.

Vitamin D deficiency not only weakens the immune system but also affects bone health and mood.

Some studies suggest that sleeping too long or irregularly may be linked to mild chronic inflammation and an increased risk of cardiovascular disease, according to Dr. Agarwal.

Lifestyle changes to improve sleep and health

It is recommended that people who regularly sleep until noon should adjust their lifestyle to regain a balanced biological rhythm.

Maintaining a regular and adequate sleep routine not only improves mental health but also protects the heart, balances hormones and strengthens immunity.

You should spend time exposed to natural light in the morning, maintain physical activity during the day and follow good sleep hygiene, such as going to bed and waking up at the same time every day, avoiding using electronic devices before bed, keeping the bedroom quiet and cool...

Source: https://thanhnien.vn/dieu-gi-xay-ra-voi-co-the-khi-ban-ngu-den-trua-moi-ngay-185251118234841788.htm


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