10 Teensy Health Habits That Can Make A Huge Difference

The good news: Antioxidant-rich black tea has been shown in studies to significantly improve vascular function. The bad news (especially for Brits and those who sip like them): Adding milk to your tea basically cancels out those benefits, found a study published in European Heart Journal. The researchers speculated that the milk proteins bind with the tea's antioxidants, neutralizing their effects.

Microchange: If you can't stomach Earl Grey black, try switching to green tea, which is traditionally taken plain, without milk or even sugar or honey.