A Cup of Black Tea Each Day Reduces Risk of Parkinson's Disease

Parkinson's disease is a degenerative disorder that disrupts movement and balance.
"Black tea, a caffeine-containing beverage, showed an inverse association with Parkinson's disease risk that was not confounded by total caffeine intake or tobacco smoking," the authors wrote. "[This suggests that] ingredients of black tea other than caffeine appear to be responsible for the beverage's inverse association with Parkinson's disease."
A key difference between black tea and green tea lies in the types and amounts of flavors Walker said. "Green teas contain more of the simple flavonoids called catechins. But when black tea is made, the catechins undergo oxidation resulting in the generation of more complex varieties, called thearubigins and theaflavins."