Parkinson’s disease is increasingly being recognised as one of the world’s fastest-growing neurological disorders. Once widely associated with elderly people experiencing hand tremors, the condition is now being diagnosed at younger ages and is attracting growing attention from neurologists and public-health experts.
It was in 1817 that British physician James Parkinson published his landmark 66-page medical pamphlet, An Essay on the Shaking Palsy. He described a condition he called paralysis agitans, providing the first detailed and unified medical description of what later became known as Parkinson’s disease.
James Parkinson was an English surgeon, geologist, palaeontologist and political activist. The disease was later named Parkinson’s disease in his honour because of his pioneering observations and medical description.
Today, Parkinson’s is no longer simply an “elderly person’s tremor”. Neurologists worldwide are increasingly concerned about its rapid growth, with projections suggesting that the number of cases could double by 2040.
Why Is Parkinson’s Disease Spreading?
Parkinson’s disease affects brain cells responsible for producing dopamine, a chemical involved in movement, balance and motivation.
Global health estimates suggest that around 10 million people are living with Parkinson’s disease worldwide. Experts generally identify several factors behind its rising prevalence.
1. Ageing Population
Age remains the biggest recognised risk factor. As life expectancy increases, more people live long enough to develop Parkinson’s. Most cases occur after the age of 60, although increasingly, people in their 30s and 40s are also being diagnosed.
2. Better Diagnosis
Improved medical awareness and diagnostic techniques mean that more cases are being recognised at an earlier stage instead of being dismissed as normal ageing or general weakness.
3. Environmental Exposure
Researchers have also investigated possible links between Parkinson’s and long-term exposure to pesticides, herbicides, industrial chemicals and air pollution. This has particular relevance for agricultural workers and people living in areas with poor air quality.
Head injuries and changes in gut bacteria are also being investigated.
One important fact is clear: Parkinson’s disease is not contagious and cannot be transmitted from one person to another.
What Causes Parkinson’s Disease?
There is no single confirmed cause. According to current understanding, Parkinson’s appears to result from a combination of age, genetic susceptibility and environmental factors.
Approximately 10-15 percent of cases are estimated to have a familial or genetic component. Environmental studies have examined associations with pesticides, solvents, heavy metals and other exposures.
At the neurological level, researchers have focused on the accumulation of a protein called alpha-synuclein, which is associated with damage to dopamine-producing neurons in a region of the brain called the substantia nigra.
The exact sequence of events, however, remains uncertain.
Some recent research has also investigated whether living close to heavily treated areas, including golf courses, could be associated with increased Parkinson’s risk because of pesticide exposure. Such findings require careful interpretation and further research before they can be considered conclusive.
Another important area of research concerns the gut. Scientists are investigating the possibility that biological changes associated with Parkinson’s may begin in the digestive system years before obvious neurological symptoms develop. This is one reason constipation is being studied as a possible early non-motor symptom.
Symptoms to Watch For
The four major motor symptoms are:
” Tremor
” Slowness of movement
” Stiffness
” Balance problems
There are also several non-motor symptoms that may appear earlier, including:
” Loss of smell
” Sleep disorders
” Constipation
” Depression
” Changes in handwriting
Early recognition is important because treatment and rehabilitation can be more effective when symptoms are addressed before significant disability develops.
Treatment Advances in 2026: From Pills to Brain Technology
Unfortunately, there is still no definitive cure for Parkinson’s disease. However, treatment in 2026 is considerably more advanced than it was two or three decades ago.
The main objective is to control symptoms, maintain mobility and quality of life, and where possible delay disability.
Medicines
Common treatment approaches include:
Levodopa and Carbidopa: These medicines help compensate for reduced dopamine activity and remain an important treatment for motor symptoms.
Dopamine Agonists: Available in tablet and patch forms, these may be used particularly in some younger patients.
MAO-B and COMT Inhibitors: These medicines can help prolong or improve the effects of levodopa.
Dopamine is sometimes popularly described as the “happy hormone”, although scientifically it is more accurately associated with reward, motivation, movement and several other brain functions.
Stress has also been discussed by neurologists as one possible factor influencing neurological health, although it should not be presented as a proven single cause of Parkinson’s disease.
Brain Technology and Rehabilitation
Treatment is no longer limited to medicines. Several advanced approaches are now available for selected patients, including:
” Deep Brain Stimulation (DBS)
” Focused Ultrasound
” Pump-based therapies
Lifestyle and rehabilitation are also increasingly important. Neurologists and rehabilitation specialists may recommend exercise, physiotherapy, speech therapy, dancing and other structured activities according to a patient’s condition.
Exercise as Medicine
A 2024 study led by Bart de Laat, titled “Intense Exercise Increases Dopamine Transporter and Neuromelanin Concentrations in the Substantia Nigra in Parkinson Disease”, examined the effects of intensive exercise in patients with mild and early Parkinson’s disease.
The study evaluated the dopaminergic system before and after a six-month intensive exercise programme. Its findings suggested improved functionality in remaining dopaminergic neurons after exercise.
However, the researchers emphasised that further large-scale clinical studies are needed to establish the precise neuromodulatory or neuroprotective effects of exercise.
Nevertheless, the research offers considerable hope and reinforces the importance of physical activity and rehabilitation in Parkinson’s care.
The Situation in Pakistan
Pakistan also faces a growing Parkinson’s challenge. One estimate places the number of patients at more than 100,000, although the actual figure may be higher because many patients remain undiagnosed.
The problem is particularly serious in rural areas where access to neurologists and specialised movement-disorder services is limited.
There is also a need for greater awareness among healthcare professionals about modern approaches to Parkinson’s management. Treatment should not be limited to prescribing medicines; appropriate patients can also benefit from exercise programmes, physiotherapy, speech therapy, rehabilitation and specialist assessment for advanced therapies.
Major hospitals in Karachi, Lahore and Islamabad now offer movement-disorder services, while DBS surgery is available at several centres. For patients in rural areas, however, the cost of treatment, travel and access to medicines remain major barriers.
The Road Ahead
The next few years could be critical for Parkinson’s research. Scientists are investigating treatments that may eventually move beyond simply managing symptoms towards slowing the underlying disease process.
For Pakistan, greater awareness is urgently needed. A national Parkinson’s registry, public-awareness campaigns and better access to specialist services could help identify patients earlier.
Particular attention should be given to farmers and industrial workers who may face long-term exposure to chemicals, while environmental and occupational health research should be strengthened.
Parkinson’s disease is undoubtedly a serious and growing challenge, but fear should not replace hope. With early diagnosis, appropriate medication, rehabilitation, exercise and advanced technologies such as DBS where suitable, many patients can continue to lead active and meaningful lives for many years after diagnosis.
The challenge for Pakistan is not only to treat Parkinson’s disease but also to recognise it earlier, improve public awareness, update medical practice and ensure that modern treatment reaches patients beyond major cities.
