Discussion: Like Cortisol, which suppresses the immune system, some compounds strengthen the immune system.

Cortisol is a natural steroid hormone secreted by the adrenal gland; its function is to prevent an overly inflammatory response. Medicine extensively uses synthetic steroids to suppress the immune system and thus prevent acute symptoms. Unfortunately, there is no single drug that can strengthen the immune system. At the same time, you refer to antioxidants found in various foods and herbs, mostly from plants. It is essential to emphasize that strengthening the immune system is a combination of nutrition and proper lifestyle on a physical and mental level, and no single drug can repair improper lifestyle damage and poor nutrition.

Link: Type 2 Diabetes – Natural immune system rehabilitation.
https://www.sf-healing.com/page/206 (Copy & Paste)