Lose Weight After 40?

Why is it so hard to keep yourself looking good?  You are doing everything right....watching what you eat...exercising!  Why?

Every year, it s​eems, the needle on the scale is a little harder to budge. You cut back on portion size; you say, "No, thank you," to dessert; you sign up for an aerobics class -- and yet your jeans size goes up and your energy level goes down.

(via Weight Loss After 40: Why It's So Hard -- and What Works.)