I have slowly over the last year lost 55 lbs.I have been overwieght for at least 20 years. I am 55 years old and have about 50 more to loose. I now walk at least 3 times a week 5 miles, and what I would like to know is how to or if I can, tighten my skin on my thighs. I carried most of my weight around my abdomen/midsection I expected to have loose and sagging skin there. The typical Apple shape, but not in my legs which have always been shapely I thought.. Will I now have to do weight training? I am loosing about 2 lbs a week and eating low carbs and using portion control.Drink only water and tea. Am I doomed to have this sagging skin, but being healthy at the same time? Any suggestions?