What is the purpose of the histamines?

Histamines are chemicals produced by the immune system that play a crucial role in the body's response to allergens and injuries. When the body encounters an allergen, histamines are released, leading to symptoms such as itching, swelling, and inflammation. They help regulate physiological functions, including gastric acid secretion and neurotransmission in the brain. Overall, histamines are vital for the immune response, although their overproduction can lead to allergic reactions.