Parkinson’s disease is a progressive brain disorder that affects the nervous system, causing gradual loss of muscle control. According to Parkinson Canada, it occurs when cells that normally product dopamine, “a chemical that carries signals between the nerves in the brain,” die.
The symptoms of Parkinson’s disease present themselves slowly, and worsen as the condition progresses over time. Although they vary from person to person, the following are the six most common signs of the condition.
1. Tremors or Shaking
Tremors or shaking are among the most common motor symptoms of Parkinson’s disease. According to the Parkinson’s Disease Foundation, approximately 70 percent of people of people in the early stages of the disease will develop a tremor on one side of the body, typically in the hand or foot but sometimes in the jaw or face.
Shaking limbs can sometimes occur after engaging in exercise or if that particular area of the body has been previously injured, but when caused by Parkinson’s disease it will typically occur while the person is at rest and the muscles are relaxed.