Which of the following is NOT a sign of dehydration during exercise?

In the context of recognizing signs of dehydration during exercise, increased energy levels is not a typical sign. When the body is dehydrated, it experiences a decline in physical performance and overall well-being. This manifests as fatigue, weakness, and other negative symptoms. Thirst, dizziness, and dark yellow urine are established indicators of dehydration.

Thirst is a primary signal from the body that indicates the need for fluid replenishment. Dizziness often occurs due to decreased blood volume and altered electrolyte balance, which can affect blood pressure and brain function. Dark yellow urine is a visual cue that suggests concentrated waste, indicating insufficient hydration. All these signs imply that the body is in need of more fluids to maintain optimal function during exercise.