A good nightโs sleep is incredibly important for your health. In fact, itโs just as important as eating healthy and exercising. Unfortunately, thereโs a lot that can interfere with natural sleep patterns. People are now sleeping less than they did in the past, and sleep quality has decreased as well.
Here are 10 reasons why good sleep is important
1. Poor sleep is linked to higher body weight
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Poor sleep is strongly linked to weight gain. People with short sleep duration tend to weigh significantly more than those who get adequate sleepย
In fact, short sleep duration is one of the strongest risk factors for obesity.
In one extensive review study, children and adults with short sleep duration were 89% and 55% more likely to develop obesity, respectively .ย
The effect of sleep on weight gain is believed to be mediated byย numerous factors, including hormones and motivation to exercise .
If youโre trying to lose weight, getting quality sleep is absolutely crucial.
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Short sleep duration is associated with an increased risk of weight gain and obesity in both children and adults.
2. Good sleepers tend to eat fewer calories
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Studies show that sleep-deprived individuals have a bigger appetite and tend to eat more calories.
Sleep deprivationย disrupts the daily fluctuations in appetite hormones and is believed to cause poor appetite regulation. This includes higher levels of ghrelin, the hormone that stimulates appetite, and reduced levels ofย leptin, the hormone that suppresses appetite .
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Poor sleep affects hormones that regulate appetite. Those who get adequate sleep tend to eat fewer calories than those who donโt.
3. Good sleep can improve concentration and productivityย
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Sleep is important for various aspects of brain function. This includes cognition, concentration, productivity, and performance . All of these are negatively affected by sleep deprivation.
A study on medical interns provides a good example.
Interns on a traditional schedule with extended work hours of more than 24 hours made 36% more serious medical errors than interns on a schedule that allowed more sleep .
Another study found that short sleep can negatively impact some aspects of brain function to a similar degree as alcohol intoxication .
On the other hand, good sleep has been shown to improve problem-solving skills and enhance memory performance of both children and adultsย
NOTE:
Good sleep can maximize problem-solving skills and enhance memory. Poor sleep has been shown to impair brain function.
4. Good sleep can maximize athletic performance
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Sleep has been shown to enhance athletic performance.
In a study on basketball players, longer sleep was shown to significantly improve speed, accuracy, reaction times, and mental well-being .
Less sleep duration has also been associated with poor exercise performance and functional limitation in older women.
A study in over 2,800 women found that poor sleep was linked to slower walking, lower grip strength, and greater difficulty performing independent activitiesย
NOTE:
Longer sleep has been shown to improve many aspects of athletic and physical performance.
5. Poor sleepers have a greater risk of heart disease and stroke
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Sleep quality andย durationย can have a major effect on many health risk factors.
These are the factors believed to drive chronic diseases, includingย heart disease.
A review of 15 studies found that people who donโt get enough sleep are at far greater risk of heart disease or stroke than those who sleep 7โ8 hours per night .
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Sleeping less than 7โ8 hours per night is linked to an increased risk of heart disease and stroke.
6. Sleep affects glucose metabolism and type 2 diabetes risk
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Experimental sleep restriction affects blood sugar and reduces insulin sensitivity .
In a study in healthy young men, restricting sleep to 4 hours per night for 6 nights in a row caused symptoms ofย prediabetesย .
These symptoms resolved after one week of increased sleep duration.
Poor sleep habits are also strongly linked to adverse effects on blood sugar in the general population.
Those sleeping less than 6 hours per night have repeatedly been shown to be at an increased risk of type 2 diabetesย
NOTE :
Sleep deprivation can cause prediabetes in healthy adults in as little as 6 days. Many studies show a strong link between short sleep duration and type 2 diabetes.
7. Poor sleep is linked to depression
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Mental health issues, such asย depression, are strongly linked to poor sleep quality and sleeping disorders.
Itโs been estimated that 90% of people with depression complain about sleep quality .
Poor sleep is even associated with an increased risk of death by suicide. Those withย sleeping disordersย like insomnia or obstructive sleep apnea also report significantly higher rates of depression than those without .
NOTE:
Poor sleeping patterns are strongly linked to depression, particularly for those with a sleeping disorder.
8. Poor sleep is linked to increased inflammation
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Sleep can have a major effect onย inflammationย in your body.
In fact, sleep loss is known to activate undesirable markers of inflammation and cell damage.
Poor sleep has been strongly linked to long-term inflammation of the digestive tract, in disorders known asย inflammatory bowel diseaseย .
One study observed that sleep-deprived people with Crohnโs disease were twice as likely to relapse as patients who slept well.
Researchers are even recommending sleep evaluation to help predict outcomes in individuals with long-term inflammatory issues.
NOTE:
Sleep affects your bodyโs inflammatory responses. Poor sleep is linked to inflammatory bowel diseases and can increase your risk of disease recurrence.
9. Sleep affects emotions and social interactions
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Sleep loss reduces your ability to interact socially.
Several studies confirmed this using emotional facial recognition tests.
One study found that people who hadnโt slept had a reduced ability to recognize expressions of anger and happiness. Researchers believe that poor sleep affects your ability to recognize important social cues and process emotional information.
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Sleep deprivation may reduce your social skills and ability to recognize peopleโs emotional expressions.
The bottom line
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Along with nutrition and exercise, good sleep is one of the pillars of health.
You simply cannot achieve optimal health withoutย taking care of your sleep.
