Breaking and hauling concrete patios in the Florida sunshine, I learned to take a couple of salt tablets with my gallon or two of water per shift to prevent incapacitating symptoms of thirst. Gatorade was both not enough electrolytes and the sugar spike too quickly dissipated. On the flipside, distilled water strips excess ions.
Same here. On recent Indian trips, I got hit with mild nausea after sweating in summer weather. I couldn't believe I wasn't able to go around like I used to few years ago. Had to bring along mildly salted water and take couple of sips now and then.
