Ginkgo biloba has been used for centuries for its memory-enhancing powers. Recently, it's been added to teas and energy drinks to help improve your concentration. But does it really work? And is it safe? Dr. Oz shares his thoughts.

View Part 1 of Ginkgo Biloba: Helpful or Harmful?


Learn more about the dangers of ginkgo biloba.

How to Safely Make Lifestyle Changes With Type 2 Diabetes

Gain control of your disease while still protecting your heart

If you're overweight or obese and have type 2 diabetes, a new study reveals how to make lifestyle changes that will help you safely gain control of your disease and still protect your heart.

Researchers published a study in Diabetes Care that took a second — and more in-depth — look at data from the NIH's Look AHEAD study. They found that for 85% of people in that study, lifestyle interventions that triggered weight loss and increased physical activity reduced potential cardiovascular problems. Such lifestyle interventions also help reduce the risks for diabetes, dementia and some cancers and strengthen the immune system.

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