There is a product out called liquid-iv.com
Available at Costco or online. I like keeping a few packages in glove box just incase. Much faster and better than gatoraid. Dehydration is serious business and can lead to an early death.
Signs:Fatigue, dizziness, headache, brain fog, muscle cramps, increased heart rate, dry mouth, thirst, muscle fatigue, bad breath, dark urine, dryskin, infrequent urination and weird unexplained pains.
Guys please watch out for this and drink lots of water. A number of years ago I was in an attic for maybe 8 minutes reconnecting a dryer vent. I came down the stairs and almost immediately passed out falling into a bathroom. Six stitches and tons of humiliation (Wet my pants in customers home when I passed out. They called rescue squad before I came through.) Waking up not having a clue where you are with rescue starting a drip line should be reserved for drunk college kids.
BE SAFE everyone.