When you work out, your body produces a build-up of lactic acid. The more you exercise, the more acidic your muscles become. This buildup prevents oxygen from getting to muscle tissue and can cause discomfort if left too long without adequate rest. When working out in a climate with high humidity or sweat pouring off one’s brow, this makes it harder for the body to cool down after activity is over – especially during longer sessions where water loss is greater than normal. In these instances, keep an eye on how much moisture comes through your pores as soon as training is over – if not just before then – and try to give yourself time for recovery between workouts when possible (e.g., warm up at least once or twice before starting intense lower-body exercises). If you notice that beading sweat has begun even though there was no heat stress involved (indicating hyperhidrosis) and/or begin to feel tired after workouts due to dehydration; drink lots of fluids throughout the day now! Remember: hydration = performance!