Slim in your sleep

Written by Marina Lommel
3 minutes reading time
17. July 2023 zuletzt aktualisiert am 1. August 2023 von
Schlank im Schlaf

You may have heard that getting enough sleep is important. Yes back then from mom and dad, but also later from doctors, in articles or from friends. Today we explain why sleep is also important for losing weight and why too little sleep is bad for you.

Table of contents

    1. influence on ghrelin

    Sufficient sleep protects against cravings

    You wake up in the morning with a huge appetite or even wander to the fridge at night? Maybe you’re lacking sleep… Because even one night of sleep deprivation increases the cravings hormone ghrelin. So if you don’t want to be plagued by cravings, make sure you get a good night’s sleep. “Sufficient” means at least 7-8 hours according to scientific standards.

    2. leptin makes you full

    Leptin is an important satiety hormone. It was discovered not long ago that leptin is produced in adipose tissue. The more fat is stored, the more leptin is produced and the fuller we should feel. People who sleep too little have lower leptin levels – even though there is actually enough fat stored on their hips. So lack of sleep lowers the satiating leptin and makes you permanently hungry.

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    3. melatonin helps insulin sensitivity.

    The sleep hormone melatonin has a positive influence on our insulin levels. During the night, this is lowered by the effect of the sleep hormone. This causes your cells to remain sensitive to insulin, allowing them to absorb and metabolize ingested carbohydrates well.

    In addition, melatonin lowers plasma lipid concentrations.

    In rats with hyperinsulinemia (excessively high insulin levels) and hyperlipidemia (excessively high blood lipid levels), administration of melatonin restored normal insulin and also lipid levels. New studies also show that melatonin is a special antioxidant and can protect your body from free radicals and thus also from cancer and neurodegenerative diseases.

    For good melatonin production, it’s especially important that you don’t get too much blue light from TV sets and smartphone screens in the evening.

    4. influence on cortisol

    Too little sleep cranks up your cortisol production. The more cortisol your body releases, the harder it will be to lose fat and thus reach your desired weight. Cortisol supports gluconeogenesis, the formation of new glucose from proteins. This, in turn, means that when blood sugar levels are too low, your cells don’t use fat as a new source of energy, but simply make new sugar from protein and use it to get energy.

    5. influence on somatotropin

    Too little sleep inhibits the production of somatotropin. However, somatotropin is particularly important for metabolism. In children it is important for length growth, but when we are adults a deficiency of somatotropin is usually associated with an increased risk of cardiovascular disease and increased fat mass. A deficiency can also lead to a worsened sense of well-being, including on an emotional level.

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    This article was written by

    Marina Lommel

    Marina gründete Foodpunk nach ihrem Abschluss in Ernährungswissenschaften und ist aktuell CEO des Unternehmens. Während ihres Studiums arbeitete sie in verschiedenen Bereichen, darunter in der Wissenschaftsredaktion beim Radio, Redaktion beim TV und Uni-Wissensmagazin sowie im Labor am DZNE in der Parkinsonforschung. Marina ist außerdem Autorin von 5 ernährungswissenschaftlichen Sachbüchern.

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