It is estimated that 10 million people worldwide are living with Parkinson's disease, with men being one and half times more likely to develop the condition.
Parkinson's disease is a degenerative progressive disorder that affects the nerve cells that are responsible for sending signals that control body movement to your brain. There is currently no cure for the condition, but there are medications that effectively manage the symptoms.
Unfortunately for a man named Les Milne, he succumbed to the complications brought on by the disease at the age of 65 after a 20-year battle.
However, he did not die in vain.
See, Les's wife, Joy, was able to detect her husband's illness even before the doctors could, and after revealing how she managed to do it, experts are speculating that the way Parkinson's is diagnosed could be changed forever.
Although Les was diagnosed when he was 45 years old, Joy insisted that she knew something was wrong at least six years before.
So how did she do it?