Losing weight is a great way to look younger and it also improves your health. It doesn't cost anything. Something as simple as incorporating a walk into your daily routine can make a big difference in your health. (A recent study claimed that women who walk regularly are less likely to get a stroke.) Walking has psychological benefits too, which is probably why writers suggest walking, as a way to get clarity of thought and inspiration.
According to an online article (Business Wire), "Those born between 1946-1964 have found that there is a recipe to increasing longevity, combating aging and most importantly feeling younger than their true age, according to the 2010 Del Webb Baby Boomer Survey.....Many Baby Boomers are 'fighting' aging by being engaged in a variety of activities that keep their minds sharp, their bodies strong and their social life robust." According to the article, baby boomers have found their own fountain of youth.
Baby boomers want it all. They want to stay young looking and keep their good health. And who can blame them. To be perfectly honest, I'm concerned with those things too. However, my "soul health" is extremely important to me too, as is my prayer life and my relationship with God and others. For me, having it all is being in right relationship with God and nurturing that relationship through all stages of my life.
Also, if you want to do some interesting reading on the "Future of Catholicism," there are good articles at Patheos, being promoted by some well known Catholic bloggers--http://www.patheos.com/Topics/Future-of-World-Religions/Catholicism.html