What are two dangers of dehydration when exercising?

Here are two dangers of dehydration when exercising:

• Heatstroke: Dehydration impairs the body's ability to regulate temperature, leading to an increased risk of heat-related illnesses like heatstroke, which can be life-threatening.
• Reduced performance and fatigue: Even mild dehydration can significantly decrease physical performance, causing muscle cramps, dizziness, and premature fatigue, making it difficult to continue exercising effectively.