What is a common physical effect of massage therapy?

Massage therapy is known to have a variety of physical benefits, and one of the most significant is its ability to stimulate lymphatic drainage. The lymphatic system plays a crucial role in the body's immune function and fluid balance. When massage is applied, it helps increase the movement of lymph fluid through the vessels, which can improve the elimination of waste products and toxins from the body. This enhanced lymphatic circulation can also contribute to reducing swelling and helping to alleviate conditions such as lymphedema.

In the context of the other choices, increased heart rate typically occurs with physical exertion or stress, but massage generally promotes relaxation and may lead to a decrease in heart rate. While massage can potentially help with reducing fluid retention, it does this primarily through the stimulation of the lymphatic system rather than acting directly on fluid levels. Heightened sensitivity of the skin is not a common effect of massage; instead, it often enhances relaxation and well-being, promoting a more balanced state rather than increased sensitivity.