That’s the perfect advice. I live in the world of this age group. You can gain back some youth on that alone.
One thing I would say to this women is that when you get into a really serious daily exercise program (particularly cardio), you begin to see that your life lies in front of you, not behind you.
As an aside, it is apparent that this women is depressed about the state of her life. That will go away when she starts getting fit and gets into a physically active lifestyle.