For others, he saw that there were other problems that the Alexander Technique, or primary control, could help. Primary control, as Alexander used it was the correct positioning of the head, neck, and torso so that the body worked normally. Now, the Alexander Technique is being used in clinics around the country. For one, amputees will need help in overcoming phantom pains. These are pains where the limb used to be. The sensation really is in the nerve that would lead to that limb if it were still there. Physiotherapy can use its own techniques to treat this pain. Most amputees will be getting a prosthetic limb. These problems require special attention as osteoporosis makes patients frailer, and osteoarthritis is very painful. Because falls are such a problem, the osteoporosis therapy is crucial. Along with that, geriatric physiotherapy is responsible for preventing many falls because of work with balance and gait. Like other neurological conditions, it can be very debilitating. A great amount of physiotherapy is needed to help Myasthenia Gravis patients to live with their neurological conditions. This includes strength training, training in the use of supportive devices, and help with common tasks. One problem physiotherapists face when working with MG patients is that too much exercise will make their condition worse and not better. It can be a difficult task of stroke rehabilitation to help victims relearn switching from one task to another. This is partly because of problems in the brain. The cues to move the muscles and joints in order to change movements are slow in coming. This is why practice is so important. The more times physiotherapists help a patient with this, the easier it becomes. There is help for both kinds of postural problems in physiotherapy. Posture is the way one stands, sits, or walks. It can refer to any normal position that the body usually holds. When the shoulders are hunched forward or the arm is extended in an awkward position, these are postural problems. They can lead to muscle and joint pain, headaches, and other unpleasant symptoms.