Soldiers may also elect not to wear a combat patch. Controversies have arisen in recent years over brigade commanders' decisions to ban combat patches in certain situations. This has been done in an effort to make new recruits, who didn't have the patches, feel less excluded.
Cortisol functions to reduce inflammation in the body, which is good, but over time, these efforts to reduce inflammation also suppress the immune system. Chronic inflammation, caused by lifestyle factors such as poor diet and stress, helps to keep cortisol levels soaring, wreaking havoc on the immune system.
Cortisol is a hormone that, when released in excess, can create a host of pathological conditions in the body. When we are under stress or have an infection, cortisol raises our blood pressure and blood sugar. These changes help us survive short periods of stress, but they hurt us when they continue for years. The problems associated with chronically elevated cortisol levels include: Suppressed immunity.