Sleeping More Than 7 to 8 Hours Daily Is
Increased Mortality. So How Much Sleep Do You Need?
There is very little doubt not having enough sleep affects our well-being. For example, there is evidence that sleep deprivation can more than double the risk of death from cardiovascular disease. Surprisingly, the risk of death also doubled for people who sleep too much!
So, how much sleep do we really need?
Most people believe that they need about 8 hours of sleep a night in order to feel rested. Often it is this believes that lead many people to believe they are not having enough sleep.
However, studies have shown that sleeping more than 7 to 8 hours a day is associated with increased mortality (risk of death). Other studies have found that people who live the longest sleep between six to seven hours every night.
Nevertheless, what you need to bear in mind is that this reduction in morbidity (risk of illness) is with people who wake up naturally without the help of an alarm clock.
Alright, you had 6 to 8 hours of sleep but you still feel it is inadequate. This is because you not only have to get the right amount of sleep time; you also need to ensure the timing of your sleep. Haven't you slept at 3 am and tried to make up with 8 hours of sleep afterwards? Did it work?
Its because your sleep timing must be in synchrony to your own biological clock or circadian rhythm.
The best time to sleep is 6 hours before your lowest body temperature. Yes, if you want to accurately know your own biological clock, you'll need to track and record your body temperature every hour for an hour. This chart is extremely helpful for you to determine exactly your best sleep time.
However, most patients claim to suffer from lack of sleep due to poor sleep quality. This is when these individuals are not able to attain stage 4 or delta sleep.
Other factors affecting sleep includes depression, bipolar disorder or alcoholism. There is also an increasing number of people who are having sleep problems due to the effects of electro-smog.
Sleep deprivation is a burden:
It might surprise you to know that having only 4.5 hours per night does not increase our mortality rates. You definitely do not want to increase your mortality rate by sleeping more than 8 hours per night.
Therefore, mild to moderate sleep deprivation for most people guarantees you increased longevity.
In conclusion, ideal sleep is when you sleep at the right time between 6.5 to 7.5 hours per night. Nevertheless, for some people they may have a more serious condition where they persistently find it difficult to sleep despite having the opportunity. These individuals may be suffering from insomnia.
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