Your thyroid helps regulate metabolism, temperature, and heartbeat. (health.com)
While a significant amount of body fat can be used to make energy, smaller but significant amounts play just as important a role in regulating metabolism. (philmaffetone.com)
The pancreas is a gland in the abdominal cavity that produces enzymes which aid in digestion, and hormones such as insulin which regulate the metabolism of sugar. (kcregap.org)