In a paragraph, define type 1 diabetes and discuss factors that contribute to the development of type 1 diabetes. (site 1)

Type 1 Diabetes is an autoimmune disease that occurs when T cells attack and destroy most of the beta cells in the pancreas that are needed to produce insulin, so that the pancreas makes little or no insulin. Without the adequate amounts of insulin, the body is not able to metabolize blood glucose and to use it efficiently for energy, and toxic acids (called ketoacids) build up in the body. 

The main factors that can contribute to this disease are family history. and genetics. 

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle