Every wonder why your energy is lower in the winter or on cloudy days? You may have SAD or Seasonal Affective Disorder. This TED style talk will help you know if you have it and what you and your doctor can do to manage it. The talk also covers Bipolar disorder with seasonal pattern which is similar to SAD. The talk is about an hour long and is written at the lay person level so it works well with public audiences. Please contact me via my website, www.scottcarrollmd.com if you are interesting having me present this or any other talk.