Why do some people sweat more than others? It is important to note that sweating is the normal reaction of our body when it feels the need to cool itself down. This happens not only after some physical exertions, but also when we are put under emotional stress. However, not everyone has the same physical and emotional composition so our body reacts differently even when exposed to the same condition.
Not to put anybody down, but it is an established fact that overweight people sweat more than thin ones. Have you checked your weight lately? If you find yourself suffering from excessive sweating at the same time that your weight is going up, then perhaps it is time to think about shaving some pounds.
Excessive sweating can also be caused by a medical condition called "hyperhidrosis", though it is very rare that I don’t believe you are suffering from it. People who suffer from hyperhidrosis experience excessive sweating even under normal conditions.
It might be good to have yourself checked by a doctor if too much sweating interferes with your daily activities. That way, you will be given the right advice on how to deal with your problem.