I went riding in El Cajon near San Diego a couple of years ago . It was summer and 105 in the shade . I stopped at a Starbucks and had tropical iced tea with no sweetener. It is the only time I ever took advantage of my free refill. The straight water just wasn’t quenching my thirst. I have since switched to Nuun and that helps a lot. The mineral supplements are great for us older folks and probably younger folks too.