Mar 28, 2023 · Histamine is a signaling chemical your immune system releases to send messages between different cells. Histamine has several functions, but it’s mainly known for its role in causing …

Histamine, a biogenic amine, involves many physiological functions, including the immune response, gastric acid secretion, and neuromodulation. However, its rapid metabolism makes it challenging to …

Oct 2, 2023 · Histamine is a chemical that your body produces, playing a vital role in immune responses, particularly those related to allergies, and also influencing the gut, brain, and overall immune...

Aug 14, 2022 · WebMD explains histamines, a defense mechanism your body employs to fight off allergens.

Oct 4, 2024 · Histamine acts as a neurotransmitter, facilitating communication between nerve cells in the brain. It is involved in regulating sleep-wake cycles, appetite, and cognitive functions.

Dec 13, 2025 · Histamine works by binding to histamine receptors on the surface of cells. There are four kinds of receptors, called H 1, H 2, H 3, and H 4. The activity of histamine can be blocked by various …

Nov 15, 2025 · In the central nervous system (CNS), histamine functions as a neurotransmitter, regulating numerous physiological processes. The brain’s histaminergic system is a small but …

Oct 19, 2025 · Discover histamine's vital role in your body - from allergic reactions to sleep regulation, digestion, and cognitive function. Learn how this important chemical affects your health.

Aug 3, 2025 · Histamine functions as one such neurotransmitter within the central nervous system, influencing a wide array of physiological and cognitive processes. Understanding histamine’s actions …

Aug 25, 2023 · Histamine is a biogenic amine that plays diverse roles in various physiological processes. It functions as a neurotransmitter, immune modulator, and regulator of gastric acid …