Parkinson’s is a disease first discovered in 1817 by Dr. James Parkinson in the presence of tremor at rest, difficulty to initiate movement and muscle stiffness. Parkinson attacked approximately 1 out of 250 people over the age of 40 years and approximately 1 in 100 people over the age of 65 years.
In Parkinsons disease, nerve cells in the brain that control movement die. The effects of this disease can be a minor annoyance to severe disability movement. In some studies, Parkinson’s disease can be passed down from generation to generation. There are allegations that the gene is one reason that a person creates a tendency to suffer from this disease, as quoted from LIVESTRONG.
In addition to the gene, Parkinson’s disease can also occur as a result of injury to the head. In fact, pesticide poisoning and the presence of the virus are also factors that increase a person’s risk of developing Parkinson’s. Symptoms can include tremor of Parkinson’s disease, which often begins with one hand. Tremor may disappear for a while and then reappear if you move the hand, for example when taking a cup. Tremor does not only appear on the hands, but can also be in other body parts, such as the jaw, head, arms, legs, and body.
In the case with former President Bush, who lost his balance due to Parkinson’s disease, a symptom commonly called posture instability. Where the balance is reduced as it goes forward or a lack of arm swings while walking and cause imbalance.