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It is estimated that 30% of Americans do not get the right amount of sleep per night.
Job and family stress and many other factors can lead to reduced sleep, leading to many different health issues.
Sleep loss can lower libido, increase sleepiness, cause poor attention span, alter hormone levels, and increase your risk for weight gain.
Researchers have shown that sleep loss can alter hormone levels associated with gain or losing weight, which can account for one component to weight gain.
The other, sleep loss and brain activity, has yet to be verified through research.
However, a new study published in the American Journal of Clinical Nutrition, could shed light on how sleep loss could increase weight gain by affecting certain areas of your brain.
Let me explain…
Sleep and Weight Gain
Research has shown that sleep loss can lead to weight gain.
However, there has been little research done in regards to brain activity (as opposed to hormones levels), which plays a vital role in controlling appetite and gaining weight.
Researchers aimed to determine if sleep loss resulted in altered brain activity, which could cause the desire for you to eat more.
Researchers recruited 30 participants and subjected them to either 4 hours of sleep (restricted sleep) or 9 hours of sleep (habitual sleep) for 2 different phases of 6 days during each phase.
Of the 30 participants, only 26 completed the study.
At the end of the 6 days, each participant was subjected to a fasting functional MRI in order to determine brain activity when presented with a food stimulus.
They noted that sleep deprivation (sleep loss) increased brain activity when subjects were presented with a food stimulus.
Also, they noted that activity increased in the reward centers of the brain (which included the putamen, nucleus accumbens, thalamus, insula, and the prefrontal cortex).
They concluded that their results showed a positive link between lack of sleep and the potential for increased overeating, due to the activity of brain centers responsible for controlling appetite and internal reward centers.
Get More Shut-eye
There is a growing area of concern for Americans and people worldwide in regards to their sleep patterns.
It has been shown that nearly 30% of the population suffers from sleep loss, and that this could be one of the many reasons for the
increase in overweight and obese individuals.
Current research has shown that lack of sleep alters not only hormones levels, but also areas of the brain responsible for appetite control.
Now, current research shows that sleep loss may change brain activity, potentially leading to overeating.
Sleeping less, according to this study, has been shown to increase the activity of the reward center of the brain, which could mean more needed to satisfy or pleasure that area of the brain.
This could lead to actively searching out food and overeating (especially with easy access to calorie rich, nutrient dense snacks), which may increase your chances of gaining weight.
Increasing the amount of time you sleep could change the activity in your brain which may reduce your need to overeat, therefore potentially increasing weight loss.
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