I’m a doctor and here's why you feel tired all the time

IF you feel tired all the time, there’s a likely explanation that can easily be fixed.

Dr Karan Raj, an NHS doctor, has revealed a common reason people get stuck in a cycle of constantly feeling sleepy.

The Tik Tok medic says it’s all to do with circadian rhythms, otherwise known as the “body clock”.

Human’s natural internal body clock creates hormones that cause us to feel sleepy or wakeful, depending on the light outside.

But if you work against it, it can leave you feeling knackered.

Dr Raj explained to his 4.4 million followers one of the key reasons for this is “social jetlag”.

He said: “If you're tired all the time it could be social jetlag.

“You go to bed late on weekends, and wake up late too, trying to catch up on sleep you missed during the week.

“Sleep doesn't work that way. Your body loves routine. 

“Your internal clock, also circadian rhythm, tells you when you should wake up and when you should feel sleepy.

“If you keep messing with that clock, and make big changes to your sleep and wake time, you're going to feel drowsy and disoriented.”

Dr Raj suggests that catching up on sleep after a busy week is detrimental.

Millions of people are guilty of doing it – miss out on decent sleep in the week due to socialising or juggling life, and then playing catch up with long weekend lie-ins.

The cycle starts again when your alarm clock goes off at 7am on Monday morning.

The chances are you are staying up when your body expects you to go to bed, and sleeping when the sun has risen.

These changes in the timing of light and dark exposure force a reset of your circadian rhythms repeatedly.

Dr Raj said you should try not to shift the time you go to sleep, or wake up, by more than a couple of hours – even at the weekend.

This means waking up no later than 9am, for example, on Saturday and Sundays.

Dr Raj warned: “Just like time zone differences when you travel, the bigger the change on your sleep schedule, the bigger the effect on your body.”

Research has previously shown that switching back to a weekday sleep pattern after the weekend can create feelings of tension and anxiety, while slowing your brain power.

But sleep deprivation not only makes us feel tired and grumpy.

It can cause us to put on weight, by driving up hunger hormones, and raises the risks of road accidents or mental health illnesses. 

It indirectly causes a number of changes in the body that could be deadly.

Not getting enough sleep has been shown in research to raise the risk of heart disease, diabetes and an early grave generally.

Sleeping late on the weekends, unfortunately, is not thought to offset the harms of poor sleep over the week.

In one study by the University of Colorado Boulder, participants were split into two groups. Both were sleep deprived for a week, but only one group could make up for it at the weekend.

Regardless of their group, all participants gained weight and had worser predictors for diabetes, measured by insulin sensitivity.

But despite warnings from doctors to get enough shut-eye, many people fail to prioritise sleep.

Sometimes always feeling tired may be the sign of a medical condition, such as sleep apnoea, diabetes, chronic fatigue syndrome or in rare cases, cancer.

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