Quick fact. Ready? When exercising, especially at high intensities, electrolytes are lost as sweat. It is essential that these electrolytes are replaced as soon as possible, for they are required for proper muscle contractions, ph balance, and fluid balance within the body.

Quick fact. Ready? When we workout at moderate intensities, the vessels in our skin dilate in order to send more blood to the surface and release heat from the body. However at high intensities, that blood is redirected towards the heart and working muscles to fuel their high levels of work. This leads to less thermoregulation, and thus a higher risk of overheating when working at very high intensities, especially in hot weather.