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.
Hypothyroidism can affect many parts of the body, and treatment can often lead to normalization of these conditions. These are some ways that an underactive thyroid can affect the body: 1  High cholesterol and heart disease: Hypothyroidism slows your body's metabolism and can cause a buildup of bad cholesterol.2  It can also slow the heart and lead to an enlarged heart or heart failure.ypothyroidism can affect many parts of the body, and treatment can often lead to normalization of these conditions. These are some ways that an underactive thyroid can affect the body: 1  High cholesterol and heart disease: Hypothyroidism slows your body's metabolism and can cause a buildup of bad cholesterol.