Endurance athletes and hot yoga enthusiasts are hardly the only people who have to stay hydrated. Anyone who has a sweaty job needs to make sure to replenish the minerals lost at work. People like me who have diabetes need to be especially careful to stay in balance.
Even if you aren’t much of an athlete or work in a hot and humid place you can perspire a lot when you go to the tropics. I know from my current experience.
Right now I am writing from Caye Caulker, a tiny island in the Caribbean Sea off the mainland of the Central American country of Belize. I am here primarily to photograph birds, and that requires lots of hiking. The weather has stayed mostly at 80° hot and 95-100 percent humid.
To stay hydrated I don’t just consume a lot of salt. That can help in an emergency. When I was a kid in high school, I had a summer job washing bottles in a dairy at the western edge of the Colorado desert. When I collapsed after a few days, my parents took me to our family doctor, who prescribed salt tablets. While I was able to go right back to work, this wasn’t an ideal solution.