My father-in-law, a gp for 50 years, was in reasonably good shape , but never exercised.
When his patients asked him @ exercise
, he would half-jokingly say, "when you think about it, sit down till the urge passes". Sadly he died of heart
disease. Doc's credibility relates to whether it results in ur exercising. Either way, he's correct: exercise 30 min/4 days weekly. Will likely outlive ur doc.