So much depends on your age. We have been cruising with
DCL for 12 years. In my 30's, I didn't even pay attention. Now, at 46, I workout more on the ship, watch what I eat and I gain more than I used to.

It's just a fact that as we age our metabolism slows. But to one of the previous posters who said they want to be able to run at 40...I took up running *after* I turned 40 and I'm still going. It's been great and I feel better than ever.

I'm doing the 5k on
Castaway Cay (even in the

heat) and DH and I are going to sign up for a half marathon (Disney, of course) as soon as DS is off to college next year.