1 Sugar is absorbed into the bloodstream, where it enters cells with the help of insulin. 2  Your liver stores and makes glucose.  When your glucose levels are low, such as when you haven't eaten in a while, the liver breaks down stored glycogen into glucose to keep your glucose level within a normal range.
Training to become a pediatrician requires a four-year undergraduate degree, four years of medical school, and three or more years of hands-on residency training.
A general pediatrician must finish high school and then does: 1  4 years of college. 2  4 years of medical school (being a medical student) 3  3 years of general pediatric training in a hospitals and other places (being an intern and resident)