My weight loss buddy is also 5'8" and she weighs 164 right now and looks fabulous. She however feels she still needs to lose more as well. Her goal is to get to 158 because that is what the charts say she should weigh. But in my opinion, she has become obsessed and I am not sure if she will be able to stop. My thoughts on the subject are to lose as much weight that makes you feel comfortable with and that you can maintain. As we age our bodies change and what we looked like when we weighed 135 is not what our bodies will look like again at 135. If you have had children your body shape is forever changed no matter how much you weigh, but that doesn't mean we can't look good. Also, for me, my body looks different because I never exercised when I lost weight before, so my size 14 now is different than my size 14 before. Plateau's happen and a lot of times they happen the closer you get to goal. I have had professionals tell me not to panic as some plateau's can last up to 6-8 weeks. Continue what you are doing and perhaps change up your exercise routine for a week or so and change your eating pattern a little before returning to what you are doing now and some times this is enough to jump start the losing because our bodies get used to our routines and don't have to work as hard as it did before. And maybe (and I am not saying this is what you should do), but maybe you should change your goals as you lose some more and see if you really need or want to go down to 140, maybe that is no longer realistic for your body today. WW says I should weigh 120-144, when I was at my lightest ever I was 135 and I was fine. I know that today none of those numbers are realistic for me, so I am going by the chart from my doctor's office. I am shooting for 148-150 for my 5'5" frame, which is large boned. I am currently at 168 and I am very happy with what I have accomplished (started at 218), but I still want a little more and then I think I will be ready to stop. I think it is all about how we feel vs. the numbers, yet the numbers are out there and some times we get hung up on them. Hang in there and do what feels right for your body!