Histamine (Noun)
Meaning
Amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the human immune system during allergic reactions.
Classification
Nouns denoting body parts.
Examples
- Histamine is a chemical involved in your immune system, digestion, and central nervous system functioning.
- When an allergic reaction occurs, the body releases histamine, which causes blood vessels to dilate and smooth muscle to contract.
- Antihistamines are commonly used to counteract the effects of histamine in allergic reactions, such as itching and sneezing.
- Histamine levels are typically higher at night, which is why some people experience increased allergy symptoms during this time.
- In some cases, a histamine intolerance can occur when the body is unable to break down histamine properly, leading to a range of unpleasant symptoms.