A recent study found lower levels of caffeine in the blood of people with Parkinson’s disease. The study compared people with Parkinson’s who carry a particular genetic mutation known to increase Parkinson’s risk with people who carry the same mutation but do not have the disease.
Parkinson’s disease is a progressive brain disorder characterized by tremors, rigidity in the limbs and torso, and movement and balance problems. People with the condition also have an increased risk of depression and dementia.
According to the U.S. National Library of Medicine, more than 1 million people in North America and more than 4 million people worldwide have Parkinson’s disease. In the United States, about 60,000 people receive a diagnosis each year.
Around 15% of people with the disease have a family history of Parkinson’s, which suggests they inherited genes that increased their risk of developing the condition. However, most cases result from a