Fasting can increase alertness through higher cortisol, blood sugar swings, and electrolyte imbalance - all of which can disrupt your sleep. Here’s how to fix it with simple adjustments like managing caffeine, optimizing your environment, and supporting relaxation before bed. 💬 This video isn’t sponsored. Some links are affiliate links — I may earn a small commission (at no extra cost to you). Thanks for supporting Practical Health! 🌐 More Fasting Center: Website – https://fasting.center Reddit - https://www.reddit.com/user/andtitov/submitted/ Facebook - https://www.facebook.com/groups/fastingsciencesupport TikTok – https://www.tiktok.com/@practical.health1 Instagram – https://www.instagram.com/practical.health Amazon Store – https://www.amazon.com/shop/practical.health 🔬 About the Channel I'm Andrey Titov — a PhD in Engineering, MIT alum, and lifelong data geek turned health enthusiast. I have three kids, a full life, and a constant drive to improve every aspect of my lifestyle. Over the years, I’ve come to believe that fasting is one of the most powerful tools in our health toolbox. That belief, combined with my love of data, led me to create this channel — a place to share real-world experiences and structured insights that can make fasting easier, smarter, and more effective for others.