Exercising with excessive caution that becomes neurotic is not advised, but neither is approaching exercise so cavalierly that joint, musculature, or connective tissue integrity is compromised.

“you don't want to approach any exercise with so much caution that it's neurotic and preventive and yet you don't want to approach any exercise in any way that's so cavalier, forgive the pun, Jeff, that you're also going to compromise the integrity of your joints and musculature and connective tissue.”