Study Reveals Impact of Caffeine on Brain Function in Parkinson's Patients

High caffeine intake linked to greater decrease in dopamine transporter binding but no symptom improvement

Research led by University of Turku examined caffeine's effects on brain dopamine function in Parkinson's patients.
High caffeine consumption showed an 8.3-15.4% greater decrease in dopamine transporter binding.
The observed decline is likely due to a compensatory mechanism rather than neuron loss.
No improvement in Parkinson's symptoms was noted with high caffeine intake.
Patients are advised to avoid caffeine before diagnostic brain imaging due to potential interference.