“ “Your body when it never gets sick, never dramatically increases phase 2 immune cells. When you’re living your life not getting sick inflammation will build up in areas of your body. Your shoulder maybe your gut maybe your kidney. It’s natural for inflammation to build up in your body. Phase 2 immune cells the resolution phase of your immune system Natural killer cells M2 macrophages, and tregs. These heal your body, but if you never get sick you will not procure a lot of them to go clean up the inflammation in your body”

The statement suggests that individuals who do not experience sickness fail to significantly increase 'phase 2 immune cells', including natural killer cells, M2 macrophages, and regulatory T cells (Tregs), which are described as part of the immune system's resolution phase responsible for healing and clearing inflammation. It further claims that chronic inflammation naturally accumulates in various body parts if these cells are not sufficiently activated due to lack of illness.

Current immunological understanding recognizes that natural killer cells, M2 macrophages, and Tregs play roles in immune regulation and resolution of inflammation. However, the concept that not getting sick prevents the body from producing these cells in sufficient quantities, thereby causing localized inflammation buildup, is not a widely established or directly supported claim in mainstream immunology literature. Inflammation can arise from many causes including infections, autoimmune conditions, environmental factors, and metabolic issues.

The provided search results did not yield any authoritative scientific studies or expert reviews directly addressing this specific claim. The single source is a general news archive search page without detailed content or peer-reviewed evidence. Therefore, the claim remains speculative without corroboration from high-quality immunological research.

In summary, while the immune system’s resolution phase involves these cell types, the assertion that lifelong absence of sickness leads to harmful inflammation due to lack of these cells lacks verified scientific backing based on available information.