What is a common symptom of Parkinson's disease?

Slowed movement, medically known as bradykinesia, is a hallmark symptom of Parkinson's disease. This condition affects the nervous system and is primarily characterized by the degeneration of dopamine-producing neurons in the brain. As the disease progresses, individuals often experience a noticeable reduction in their speed of movement, which can affect daily activities like walking, talking, and performing tasks that require fine motor skills.

Bradykinesia is one of the key features that distinguishes Parkinson's disease from other movement disorders. It often leads to a reduced range of motion and difficulty initiating movements, resulting in a characteristic shuffling gait. While other symptoms may present themselves as the condition develops, such as tremors or rigidity, slowed movement is specifically recognized as a primary and early indicator of the disease.

The other symptoms listed, such as memory loss, rapid heartbeat, and excessive sweating, can occur in various medical conditions or at different stages of Parkinson's disease, but they are not as definitive in diagnosing Parkinson's as slowed movement is.