You can’t math your way out of weight loss resistance after 40. Thermodynamics is part of the picture. It’s just not the whole picture anymore. I’m 49. A nutritionist specializing in women’s health and hormones for over 20 years, and if you’ve been eating less and moving more for two years and the scale won’t move, this is for you. Your body didn’t turn against you. The math changed. After 40 you have less muscle than you used to. That means less of your body’s glucose disposal system and your blood sugar runs higher on the same meal. Higher blood sugar means more insulin. And when insulin is elevated, your body cannot efficiently burn fat for energy. Add the inflammation under the surface, a liver doing the work of three organs, and digestion that isn’t breaking food down the way it used to. Now you’re bloated on LESS food than you ate at 32 and you’re being told to eat even less. That deficit you’re white-knuckling now drops your active thyroid hormone faster than it did a d...