EVER wondered why your alarm clock snoozes for nine minutes?
It turns out it's not a random number but actually has a technical reason.
Experts suggest it's because when the snooze feature was first introduced in the 1950s it had to work around a clock's gears, which had already been designed and put in place.
Clock engineers had to work with the gears and had limited options for the pause without it lasting a lot longer than ten minutes, according to MentalFloss.
So what does this all mean for your health?
For starters, it interrupts your sleep which can actually make you feel groggy later in the day, defeating the purpose of you pressing snooze for those extra moments in bed.
When your alarm goes off it interrupts your circadian rhythm.
The circadian clock is the body's internal body clock, which is responsible for natural biological processes.
It is also responsible for the secretion of the sleep hormone melatonin, which can make you feel drowsy at different points in the day if your natural cycle is disrupted.
Your circadian rhythm works best when you have regular sleep habits, like going to bed at night and waking up in the morning around the same times from day to day, according to the Sleep Foundation.
But your alarm clock can cause that to shift, which can leave you feeling tired earlier in the day - especially if you've hit snooze and your body thinks it is going back to sleep several times.
Alarm clocks also put a lot of stress on your body - like the noise they make wasn't enough.
When they artificially yank you from your sleep they trigger a burst of activity from your body's fight or flight response, the natural response from the nervous system to a potential danger.
This causes a spike in blood pressure and the hormone adrenaline, which can put a strain on your heart, according to a study published in Industrial Heart in 2005.
And that's just when you're alarm goes off once, so pressing snooze multiple times in one morning puts your heart through the same shock process over and over again.
Top tips for a good night's sleep
- Try to go to bed and get up at the same time each day.
- Spend time outdoors. Natural light in the morning can help to synchronise the body clock
- Get regular exercise each day, but not just before bed.
- Make your bedroom restful. Maintain a comfortable temperature and keep noise down
- Only use the bedroom for sleep and relaxation
- Engage in stimulating activity just before bed – exercise, playing games, watching TV
- Drink caffeine or alcohol before bed
- Smoke before bed
- Go to bed hungry
- Nap in the evening
- Worry about your sleep – understand your sleep need and don’t set unrealistic expectations
To avoid this stress on your body you should try and get a decent night's sleep and set your alarm to go off at the time you need to get up.
There isn't a definitive answer on how much sleep you should get every night, but most experts recommend around eight hours.
If you're not sure how many hours sleep you need, the general rule is if you wake up tired and spend the day wanting a nap, then you haven't had enough sleep.
MORE ON SLEEP
A lack of sleep can actually shorten your life span, as well as leaving you feeling groggy all day.
If you have not had enough sleep you may experience brain fog, difficulty concentrating or making decisions and a low mood.
It also increases your risk of obesity, heart disease, high blood pressure and diabetes.
A recent study found getting a good night's sleep is more important to your wellbeing than regular sex and a 50 per cent pay rise.
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