Can Healthy Choices Reverse A Lifetime Of Bad Choices?

Lately I've been thinking about healthy choices vs non-healthy choices. I am not talking about splurges, like having a piece of chocolate cake on the weekend or a third glass of wine. After all we are not robots! We have to balance indulgences alongside healthy choices. I'm talking about overcoming the damage we've done to our bodies prior to making the decision to do something different to be healthier.