A therapist uses hands, and sometimes elbows and forearms, to loosen muscle and connective tissues. This can improve circulation, which enables fresh oxygen to enter the tissues, and releases toxins from the soft tissues and muscles. It is an effective form of treatment for muscular aches and pains, stiff joints, poor posture, and tension and stress-related ailments. There are many types of massage, ranging from gentle to deep pressure to hot stone. Rolfing is a type of deep tissue massage that works on the connective tissue, or fascia, to release, realign and balance the whole body. It can resolve pain and discomfort from many different causes, including trauma, back pain and repetitive motion injury.