Gain weight after intense workout?
After a 9 mile hike up and down a mountain, 3000 ft elevation gain, and a mile hike treading water, I'm very sore. We hiked for 5 hours and an additional hour for the water hike. What I don't get is that instead of losing weight, I gained 4 pounds from the day before the hike to the day after. Is this just fluid retention?…