When You’re Too Tired to Workout

weight loss, lack of sleep, hunger, satiety, cravings, hormones, weight gain

When You’re Too Tired to Workout

Do you ever feel like you have the best intentions, but lack the energy to follow them?  You’d love to get rid of that belly, but that ice cream is calling your name? You, my friend, are not alone.  There is research out there that suggests that our sleep has a connection with our food choices and hunger.  Tell you more-ok!

Our body has ways of communicating without us knowing.  For instance, we have hormones that tell our brain when we are hungry and hormones that tell our brain when we are full.  Ghrelin tells us when we are hungry, and leptin is what tells our brain when we are full. If these hormones become unbalanced that’s when we notice changes in our body.  One factor that can really upset these hormones is sleep! It’s been shown that a lack of sleep can decrease the release of the secretion of Leptin which then will cause our body to be tricked into thinking that we are hungry.  When leptin isn’t being secreted properly, we end up taking in more calories than is necessary for us to function, resulting in…. weight gain! The picture above explains it well in simple visual terms.  

If it seems like the work you’re putting in at the gym and in the kitchen isn’t working, you might have an underlying sleep problem.  Either you’re not getting enough hours, or you’re not getting good sleep as a result of a sleep-related breathing disorder. Talk to your doctor and see how you can improve your health in the long run!


Taheri, Shahrad et al. “Short sleep duration is associated with reduced leptin, elevated ghrelin, and increased body mass index” PLoS medicine vol. 1,3 (2004): e62.

Allen, Rob.  “How Lack of Sleep Affects Fat Loss.”  Instagram, KnowGains, 4 December 2018, https://www.instagram.com/p/Bq9nb_zlymL/?utm_source=ig_web_button_share_sheet

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