Doctor warns of weight gain and higher stress if you are not asleep by this time

Dr Saurabh Sethi, a board-certified gastroenterologist, has issued a warning about the harmful effects on our bodies of going to bed after midnight. Dr Sethi warned: "If you regularly stay up past midnight, you might experience several health issues. This means you are generally getting less than seven to nine hours of sleep."

The first consequence is weight gain, followed by a dip in mood. Stress levels also see a rise, reports . Dr Sethi added: "And lastly, you may struggle with concentration and thinking during the day.

"To improve your overall health, including hormone balance, gut health, liver health and mood, aim to sleep before midnight. And stick to a consistent bedtime."

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The as plenty of advice about sleep to maintain good physical and mental health. See below.

Recommended hours of sleep

Adults (18+ years): 7–9 hours per night

Children and teenagers: Varies by age, as follows -

• 3–5 years: 10–13 hours (including naps)
• 6–12 years: 9–12 hours
• 13–18 years: 8–10 hours

Good sleep hygiene tips

• Stick to a routine: Go to bed and wake up at the same time every day
• Create a restful environment: Quiet, dark, and cool rooms are best
• Avoid screens before bed: Blue light from phones or TVs can disrupt melatonin production
• Limit caffeine and alcohol: Especially in the hours leading up to bedtime
• Exercise regularly: But not too close to bedtime
• Wind down: Use calming activities before sleep, like reading or a warm bath

• Finally - do not force sleep. If you're lying awake unable to sleep, try to relax. If you're tired and enjoying the feeling of resting, then sleep may naturally take over. But if you cannot sleep, get up and sit in a comfy place and do something relaxing, like reading a book or listening to quiet music. Only go back to bed when you feel sleepier.