When Sports Fandom Meets Sports Performance


If you’re staying up late to watch the Blue Jays chase the World Series, you’re not alone. But before you blame your sluggish run or snack attack on “team spirit,” let’s talk sleep debt. While most studies on sleep are on chronic sleep insufficiency and insomnia, even one late night can disrupt recovery hormones, reaction time, and energy metabolism.




How Sleep Deprivation Impacts Your Next Workout

• ↑ Appetite & Cravings: Studies show sleep loss can trigger an average increase of 385 extra calories the next day—mostly from higher fat and lower protein choices. (1)

• ↓ Reaction Time: One late night can reduce neuromuscular coordination and sprint performance.

• ↓ Decision Making: judgement is impaired increasing irrational decision making (2)

• ↓ Anabolic Hormones: Growth hormone and testosterone dips, while cortisol rises.

• ↑ Perceived Effort: Everything feels harder—even your warm-up jog.



Next-Day Recovery Game Plan

  1. Get outside early - Morning light helps reset your circadian rhythm and promotes melatonin production for better sleep tonight.
  2.  Move your body—even lightly. A short run, walk, or lift boosts endorphins and helps regulate your internal clock.
  3. Hydrate. - Dehydration amplifies fatigue and impairs recovery.
  4. Caffeine? Strategize - That extra cup is fine—just keep it before noon to protect your next night’s sleep.
  5. Watch your calories - Your tired brain will crave energy-dense foods. Prioritize protein and fiber to stay steady.



You Can Catch Up—Mostly

Good news: you have about three nights to reclaim deep and REM sleep after a late one. Your wearable might even show an uptick in deep sleep as your body balances the books.

Bad news? If there’s another late game… well, you might need a double espresso and a power nap.





References


1 - Sleep deprivation may cause people to eat more calories

https://www.sciencedaily.com/releases/2016/11/161102130724.htm

Sleep deprivation may result in people consuming more calories during the following day, according to a systematic review and meta-analysis.


2- Khan MA, Al-Jahdali H. The consequences of sleep deprivation on cognitive performance. Neurosciences (Riyadh). 2023 Apr;28(2):91-99. doi: 10.17712/nsj.2023.2.20220108. PMID: 37045455; PMCID: PMC10155483. https://pmc.ncbi.nlm.nih.gov/articles/PMC10155483/