Why oversleeping is detrimental to your health

The number of hours you sleep is ever always mentioned by doctors and medical practitioners as a strong factor in determining the overall health of your body.

The recommended sleep hours for adults are 7-8 hours. Children require more hours of sleep to support their physical and mental development. For instance, the recommended number of sleep hours for babies is 11-14 hours.

Oversleeping or sleeping for fewer hours are incidences that are prone to occur from time to time due to other lifestyle factors. Just how bad could oversleeping be harmful to your health? An adult who sleeps for 8 hours a day and still manages to nap during the day could be exposing himself to diseases related to the heart, brain and your productivity.

Let’s take a deep dive to how exactly oversleeping is a danger to your health.


It’s important that we first understand the opinion of experts and past researches by the National Sleep Foundation. The foundation recommends a standard sleeping time of 7- 9 hours at most for adults who are in the range of 18 -64 years.
Most expert reviews on the subject have shifted between 7-9 hours of sleep with some suggesting 7 hours at most while others suggesting at least 9 hours. However, for adults, a sleep pattern that goes for more than 9 hours could be detrimental to your health.

Sleeping for nine hours regularly like for example could prove disastrous to your health. Conversely, their adults who sleep for longer hours because of health issues and other factors that can be treated.

You also want to make sure you are sleeping on comfortable beddings for quality sleep. That’s why you could be missing out if you haven’t purchased the Brooklyn bedding. It combines quality and comfort to suit all of your sleeping needs.

So, what impact does oversleeping have on your overall health?

First up, it’s important to understand that your physical and mental wellbeing is pegged on how many numbers of hours you sleep. Any variations in your habitual sleep patterns could gradually lead to mental or physical breakdown.
In the recent past, several trends have emerged that have been linked to oversleeping. Some of the emerging trends include a rising number of brain and heart diseases, heart conditions, depression and a higher rate of mortality.

Here are the health risks you stand to face if you are always sleeping longer.

  • Impaired fertility
  • Increased inflammation
  • Higher risks of weight gain
  • Higher risk of stroke
  • Increased risks of heart disease
  • Increased risks of obesity
  • Cognitive impairment

Let’s take a deep dive into how these health risks arise as a result of sleeping for longer hours.

Cognitive impairment

Data obtained by researchers from Lumosity-brain-training platform supported the fact that cognitive performance peaked when participants were made to sleep for at least 7 hours. Any sleep than seven hours worsened their cognitive functioning.

More studies have linked memory losses and impairments to longer sleep hours. A research conducted on older adults also gave similar findings. Adults who slept longer than 10 hours had a mental health that was worse than normal sleepers.

Increased inflammation

Chronic inflammation in the body is not only brought about by sleep but other lifestyle factors. If you are a smoker or obese your risk of suffering from inflammation is much higher. Sleeping for longer hours also plays a role in contracting inflammation.

Inflammation on your body is determined by the levels of cytokines. Also known as CRP levels (C-reactive proteins) a study conducted on adults found out that both male and female participants who slept for longer hours had increased levels of cytokines.

Impaired fertility

This may sound quite odd to believe but apparently, the quantity of sleep you get correlates with your fertility levels. Sleeping longer than the recommended sleep hours for your age means you could be reducing on your chances of conceiving.

For instance, an in vitro fertilization study done on Korean women found out those women who had sleep duration of 7-8 hours stood the best chances of conceiving. For the average sleepers, their fertility rate was deemed to be at 53% as compared to adults who slept for less than 7 hours (46%). As for women who slept for seven hours or longer, their fertility rates were way lower standing at 43%

Higher risks of stroke

It’s not just about sleeping less but sleeping for longer hours has been linked to increased risks of stroke as well. Researchers from the University of Cambridge made their findings true after monitoring and collecting the sleep data of 9700 Europeans for a period of 11 years.

Their results proved that people who slept for more than 8 hours a day had a 46% chance of contracting a stroke during the study period. For participants who had average sleep hours, their risk of getting a stroke increased with increased hours of sleep.

Higher risks of weight gain

Sleep only turns out to be healthy if you are sleeping within the recommended hours for your age. Sleeping for more or fewer hours means an increased risk of added weight gain on your health. Six-year Canadian research backs up these facts.

For the six-year period, the research was conducted, sleepers who slept for shorter or longer hours than the recommended sleep hours for their age added more weight. Longer sleepers gained an added weight of 1.98 kg compared to 1.58 kg for short-hour sleepers. Participants who slept for more than 9 hours stood at a 21% risk of falling obese.

Increased risks of heart disease

Coronary artery disease has been linked to both shorter and longer hours of sleep. A study conducted by National Health and Nutrition experts found out that people who slept for more than 8 hours in a day had a double chance of falling victim to angina disease and a 10% chance of getting coronary artery disease.
An analysis conducted by the Nurses’ health study on the health effects of sleep duration in women also gave similar findings. Women who slept for up to 11 hours had a 38% chance of contracting Coronary artery disease as compared to 8-hour sleepers.

Final thoughts
If you notice yourself sleeping for longer hours than normal, watch your health and find out whether you could be a victim of long sleep hours’ effects. You want to make sure you are sleeping at the recommended hours for your age to maintain peak health.


1 Comment

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