Every week, Dr. Roizen discusses the latest health headlines YOU need to know.In this episode, Dr. Roizen talks about the latest health headlines that YOU need to know, including the following topics: The FDA blocks consumer sales of pure caffeine (including green tea supplements). 95% of the world's population is breathing unhealthy air. Which plants can help? Concussions don't just come from traditional "contact sports." Women who perform synchronized swimming are at a high risk. How pot smoking may hurt the teenage brain. Clean endoscopes are often contaminated. Have your colonoscopy early in the day to avoid infection.  Automation of opioid control is having far-reaching effects for patients.  Ways to avoid E. coli in produce and salmonella in eggs and poultry.  PLUS so much more... Bonus! How Safe Is Your Drinking Water?