Body parts most prone to excessive sweating and their severity Kristen Wegrzyn, provided by FacebookTwitterEmail Body parts most prone to excessive sweating and their severity Despite the fact that sweating is normal, and even a healthy and necessary element of being human, the slightest sign of sweat in a public setting can spur anxiety and discomfort for many. Sweating in response to exercise or hot temperatures allows the body to cool down, and is considered normal, but some people experience excessive sweating for no apparent reason, which is known as hyperhidrosis. Hyperhidrosis can be a symptom of an underlying health condition or a side effect from a medication, but in many cases, the cause of hyperhidrosis is unknown. This condition can prove to be an everyday challenge both physically and mentally. Physical effects include heat rashes or other types of skin infections, while hyperhidrosis sufferers are also prone to developing generalized anxiety disorder.