Dr. Chris Labos, cardiologist with a degree in epidemiology and a regular contributor on CJAD 800. You can hear him every Sunday on Weekends with Joanne Vrakas at 7:20 a.m.

Mark Carney on Iran: Political calculation or foreign policy on the fly?
10:17

How does the time change affect our health?
07:35

Dr. Labos: Should your two-year-old be screened for high cholesterol?
06:40