Drink water with or without electrolytes a whole 18 hours before a long run? Are electrolytes only useful during/after running, or valuable a day prior?

Question

Anonymous Practitioner · Accepted Answer

Only useful after or during a run. Exercise causes the depletion of sodium in your body. If you consume excess sodium without exercising then you'll just pee it out.

“Drink water with or without electrolytes a whole 18 hours before a long run? Are electrolytes only useful during/after running, or valuable a day prior?”