T3 is critically important because it tells the nucleus of your cells to send messages to your DNA to rev up your metabolism by burning fat. (articles.mercola.com)
Perfect way to rev up your metabolism during the cold weather months. (thelittlepine.com)
Besides torching 400 to 600 calories in a 45 - minute class, indoor cycling also helps rev up your metabolism (your body's calorie - burning engine) and offers the opportunity to tone and strengthen all of the muscles in your legs, glutes, and core — without bulking up your thighs. (verywellfit.com)