RNA. A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses.
Underactive thyroid Photo Credit George Doyle/Stockbyte/Getty Images. It's hard to lose weight when your metabolism slows down, but there are things you can do. The thyroid, a butterfly-shaped gland in your throat, produces hormones that regulate many bodily functions, including metabolism.ollow a low-calorie diet. Anyone who wants to lose weight must burn more calories than are consumed. Unfortunately, for someone with an underactive thyroid, it can be difficult because the metabolism slows, meaning the body naturally burns fewer calories.
Because patients with an underactive thyroid tend to have a very low basal metabolic rate, one of the most noticeable symptoms of hypothyroidism is weight gain and difficulty losing extra weight. (Sometimes an overactive thyroid can mimic an underactive thyroid by causing weight gain, although this is less common).A minority of women with hypothyroidism donât gain weight. The difference arises from their individual biochemistry, the quality of the calories they consume, and how they use those calories.Sometimes an overactive thyroid can mimic an underactive thyroid by causing weight gain, although this is less common). A minority of women with hypothyroidism donât gain weight. The difference arises from their individual biochemistry, the quality of the calories they consume, and how they use those calories.