regulatory T cells (Tregs)

Regulatory T cells, or Tregs, are a specialized type of immune cell that help maintain the body's immune system balance. They ensure the immune response is not overactive by suppressing immune attacks against the body’s own tissues and controlling excessive responses to infections. Tregs play a vital role in preventing autoimmune diseases, where the immune system mistakenly targets the body's own cells. They also help prevent chronic inflammation and may influence immune tolerance to harmless substances. Overall, Tregs act as moderators, keeping the immune system effective yet controlled to protect health.