1. Dr. FRED BUCKHOLD, SLU Care General Internist at SSM Health Saint Louis University Hospital, and a professor of medicine at St. Louis University School of Medicine. New study showing multi vitamins do not lower your risk of death; new study finds many people on statins might not need them; another new study finds inhaled insulin is just as effective as injections and pumps for diabetic patients.

2a. DAMAR HAMLIN, NFL football player and cardiac arrest survivor.  18 months ago, Damar suffered a cardiac arrest on the football field during Monday Night Football.  He's now working with Abbott Health Care on a new program called Abbott HeartMates -- and came to St. Louis to talk with cardiac patients and staff at St. Luke's Hospital. 
2b. Dr. VIVEK MURTHY, US Surgeon General this week declared firearm violence a public health crisis.  He talks with the hosts of CBS Mornings about it.  Also talks about his call last week for a warning label on social media apps to help protect children.

3. Dr. PETER FLETCHER, Washington University School of Medicine Emergency Medicine physician and ED Medical Director at Missouri Baptist Medical Center.   Fourth of July is later this week -- Dr. Fletcher has tips on how to protect against fireworks injuries and on how to survive the heat in the coming days.

4. Dr. JING LI, associate professor of medicine at Washington University School of Medicine.  She is leading a study where doctors are prescribing fruits and vegetables to fight heart disease in study participants.  How were the participants chosen?  How was the food made available to them?  Fresh, frozen and canned foods?  Why do this study?  Working with Schnucks Supermarkets on this study.