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 and Stress: How Cortisol Levels Affect the Body. Cortisol and stress are connected and, although stress isn't the only reason for the release of cortisol into the blood stream, it is still known as a stress hormone. Every time that you are confronted with a stressful situation your body undergoes a fight or flight response and cortisol levels increase.
Stress is one of the worst thyroid offenders, as your thyroid function is intimately tied to your adrenal function, which in turn is intimately affected by how you handle stress. Many of us are under chronic stress, which results in increased adrenalin and cortisol levels, and elevated cortisol has a negative impact on thyroid function.