By Caroline Kamau Ph.D.
Getting ready for sleep with a hot cup of cocoa or chocolate is something that many people have been doing for generations, but did you know that there really is science behind it?
One of the things that can stop you falling or staying sleep is worry or anxiety about your day, the next day or other things. A recent study found that cocoa helps stressed-out mice sleep better, and another study found evidence that drinking cocoa mitigates the effects of anxiety on people. Drinking a cup of water or milk containing some teaspoons of 100% pure cocoa or chocolate might help you cope better with stress or anxiety, and help you sleep better.
Research shows that psychological distress has a variety of physiological outcomes or correlates, including disturbed sleep. The psychology and physiology of stress are interlinked in many ways, which means that being physically calm can help you feel psychologically calm, and vice versa. If you are feeling psychologically worried, anxious or stressed, cocoa or chocolate can help your body physically cope better with that state of psychological distress. By reducing your physiological distress, cocoa can help you fall asleep more easily (and more deeply) through the biofeedback process in which the body communicates its physical state of calm to the brain.
For optimal benefits, use pure cocoa powder (100% cocoa with no additives) so that your night-time drink has a high cocoa content. Avoid powders that contain added sugars, chemicals or trans fats because they might be counter-productive to health. Eating a bar of chocolate might not have the same effect as drinking water or milk containing cocoa in its pure form because a chocolate might have a less pure form of cocoa, have a relatively lower dosage of cocoa per portion, and have other ingredients that affect the absorbability or benefits of the cocoa.
Research shows that products with a lower proportion of cocoa have lower levels of flavanols, epicatechin, catechin, quercetin and theobromine, and the mental/physiological benefits of such products are lower. A drink containing 2-3 teaspoons of pure (100%) cocoa powder in a mug of hot water or milk is better for you than chocolate powders or drinks with added sugars, fats or other ingredients. Such added ingredients should be avoided because of the potential negative health effects (e.g. diabetes).
If you are stressed out, anxious or need a good night’s sleep, try a cup of cocoa.
https://www.psychologytoday.com/ca/blog/the-science-mental-health/202008/stressed-out-cocoa-or-chocolate-could-help-you-sleep
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