What are potential consequences of high temperatures during exercise?

The correct answer is related to the physiological responses of the body to high temperatures during exercise, which can lead to a variety of heat-related illnesses. When exercising in hot conditions, the body struggles to maintain a stable internal temperature, and this can result in dizziness and heat exhaustion.

Dizziness can occur as a result of overheating and dehydration, which affects blood volume and circulation. When the body's core temperature rises, blood vessels dilate to allow for heat dissipation, which can lead to a drop in blood pressure and reduced blood flow to the brain, causing dizziness or lightheadedness.

Heat exhaustion is a more severe condition that manifests when the body overheats and is unable to cool down effectively. Symptoms include heavy sweating, weakness, cold and clammy skin, and fainting. If not treated promptly, heat exhaustion can progress to heat stroke, which is a medical emergency.

In contrast, the other options contain conditions that are not typically associated with high temperatures during exercise, such as hypothermia (which occurs in cold conditions), frostbite, and burns (which are related to extreme cold or heat exposure but not commonly tied to the body's response during exercise). High blood pressure is not a direct consequence of exercising in heat; instead, it can