Throughout my 20 years in hospital-based cardiac rehabilitation I have had countless cardiac patients describe being provided blanket advice to limit lifting to 10 pounds and to avoid overly exerting themselves when discharged from hospital.  Although well intentioned, this non-specific advice coupled with delays or an inability to access cardiac rehabilitation has consequences as everyday tasks like walking the dog, climbing stairs, or even carrying groceries can suddenly feel uncertain.  Many people who were previously active suddenly find themselves sedentary, not because they want to be, but because they’re unsure what kind of activity is appropriate or safe.