Parkinson’s disease is a long-term and progressive brain disease that most commonly affects those over the age of 60.¹ People living with Parkinson’s disease have difficulty controlling their body movements, and symptoms become worse as the disease progresses, which impairs the ability to function in daily life situations.¹

The symptoms of Parkinson’s disease result from a loss of neurons in the brain that affect movement control, as well as other areas, such as mood, sleep and cognition. The exact cause of the neuron loss is still unknown, but it is believed to involve a combination of genetic, environmental and aging factors.¹

Parkinson’s disease is a progressive disorder and, over time, new symptoms appear and existing symptoms slowly become more severe.² However, it is not a terminal illness – people can live for some 15 to 25 years from the point of diagnosis – which makes it a long-term (chronic) condition.²

Symptoms can be categorized into motor and non-motor symptoms.

• Motor symptoms - The classic symptoms of Parkinson’s disease – so-called ‘motor’ (movement-related) symptoms – include tremor, slowness of movement, muscle stiffness, and balance problems.³
  
  
• Non-motor symptoms -  They can accompany all stages of Parkinson’s disease and substantially impact patients’ quality of life, for example, sudden drop in blood pressure when standing, mood disorders, sleep disorders, sensory problems, loss of sense of smell, constipation and cognitive issues, such as memory difficulties, confusion and cases of dementia.^4,5

All of these symptoms add considerably to the disease burden.

Parkinson’s disease is one of the most common neurological (nerve cell) disorders.⁵ The prevalence of Parkinson's disease in the US will double by the year 2040 (compared to 2010).⁷

Parkinson’s disease usually develops in people in their late 50s and early 60s,^{1, 8} though rarer forms of the disease can develop before the age of 40.⁸

Because the risk of developing Parkinson’s disease increases with age, the fact that more people are now living longer means that the overall  number of people with Parkinson’s disease is also rising.⁹

Parkinson’s disease is diagnosed using medical history, clinical examination, and response to treatment; there is currently no reliable biochemical, imaging or genetic test that provides a definitive diagnosis.^10,11 In addition, there are numerous assessment scales that can be used to identify the symptoms and severity of the disease.

At present, there is no cure for Parkinson’s disease, but treatments for symptoms are available and research continues. Although current Parkinson’s treatments cannot stop the progression, they can temporarily control and relieve symptoms and improve quality of life for those with Parkinson’s and their caregivers.

Treatment for Parkinson’s disease normally involves drug therapy and, in some cases, surgery. In addition to this, physical exercise, diet, complementary therapies, emotional support and strong relationships all play important roles. Understanding Parkinson’s disease, how to adapt to this new situation in life, and learning to accept new goals and challenges, are almost as important as practical management of the disease.