Not sure if anyone else experiences this, but I ride after work with friends once a week. It's usually a very hilly route that's 1500-2000 calories and 3-ish hours. I chug a ton of water before, during, and after the ride, but when I get home at 9 or 10 I feel like the human torch and my heart rate is going ape shit for hours. Last night I drank 4 water bottles during the ride and 6-8 after I got home. Even though I was so tired I was ready to go to sleep once I hopped out of the shower, I couldn't get to sleep until about 1:30, ended up waking up several times, and overall slept like shit. Seems like a big portion of it is due to hydration, so maybe drink more gatorade instead of water? Any other ideas?