Weight loss reminds me a lot of hiking in the Grand Canyon. One hour walking down the trail takes you twice as long to climb back up. One step forward, two steps back. And that, or so it seems, is the delicate dance of dieting. Since my mid-40s, I’ve struggled with my weight. Back then, it had a lot to do with perimenopause, that time of a woman’s life before menopause, when her ovaries gradually make less estrogen. With perimenopause, you may experience hot flashes, irregular periods, mood swings and insomnia. Likely all before noon but not necessarily in that order. Quite often, amid this internal combustion, a woman’s metabolism grinds to…