Synthesis Writing. Although at its most basic level a synthesis involves combining two or more summaries, synthesis writing is more difficult than it might at first appear because this combining must be done in a meaningful way and the final essay must generally be thesis-driven.
1. Endocrine Diseases. The bodyâs endocrine system produces hormones that regulate metabolism, sexual function, reproduction, mood, and much more. Diabetes is an example of an endocrine disease that can cause men to experience impotence. Diabetes affects the bodyâs ability to utilize the hormone insulin.
Physical causes are the main reasons for erectile dysfunction. They include heart disease, high blood pressure, diabetes, neurological disease, medication side effects, and other health conditions. Psychological causes of erectile dysfunction include anxiety, depression, stress, and problems in relationships.rectile dysfunction (ED), formerly called impotence, can affect men of all ages, although it is much more common among older men. It is normal for healthy men of all ages to occasionally experience erectile dysfunction.