Parkinson's disease is a condition in which certain neurons (nerve cells) in the brain become injured and die. These neurons are responsible for producing dopamine, a chemical essential to central nervous system message transmission. There are several early signs of Parkinson's disease; it often takes years before the sufferer notices any of these signs and goes to a physician to seek diagnosis and treatment. Parkinson's disease is much more common in people over 50. Currently, no cure exists but treatment improves the quality of life for most patients.
Change in Gait
The University of Maryland Medical Center explains that a limp may be the first noted sign of Parkinson's disease. It may appear to others that you are dragging one foot or leg. This can cause a tendency to fall.
Facial Changes
You may quit showing emotion in your face. To others, you may seem to be staring and you may blink less often than normal.
Shakiness or Tremor
You may feel like you are shaky inside without a noticeable tremor. Alternatively, you may have a mild tremor on one or both sides of the body. According to the Mayo Clinic, this tremor often occurs in the hand. It can usually be seen when you are sitting still and not moving the hand.
Posture Change
You may look stooped over when you stand up. You may feel stiff and have difficulty standing up straight. One of your shoulders may "freeze up" and not move easily.
Lack of Arm Movement
You may begin to walk without swinging one of your arms as usual. If you walk long distances at work or at home, someone may notice this and point it out to you. It is more common for an observer to mention it than for you to recognize it yourself.
Tingling of Neck
Another early warning sign of Parkinson's disease involves the neck. You may notice that it tingles or feels numb. Your neck may feel achy or uncomfortable, causing you to take mild pain medicine. Some people experience this in an arm or leg instead of the neck.
Vocal Change
Your voice may become softer than usual for you. People may say they have difficulty making out your words and may ask you to speak louder or more clearly.


