Physiological responses to heat

When the body gets too hot, it activates cooling mechanisms to maintain a healthy temperature. Blood vessels near the skin widen, allowing more blood to flow and release heat. Sweat glands produce moisture on the skin’s surface; as sweat evaporates, it cools the body down. The brain also receives signals to reduce muscle activity and adjust heart rate, helping prevent overheating. These responses work together to keep your internal temperature stable, ensuring your body's functions continue properly even in hot conditions.