Parkinson's disease is a deficiency of the neurotransmitter dopamine. Dopamine is responsible for how the brain deals with stress, especially the fight-or-flight response. Thus, it affects greatly on the movements of the body. Also, dopamine is responsible for information processing. That is why people with Parkinson's disease have trouble in retaining their memories or be in deep concentration.
Stress is NOT always negative
Positive stress (A stress) can help motivate you
If you eat foods that are high in sodium, the amount you consume will either not change or increase. You must eat more fruits and vegetables to lower your sodium intake.