What is a common effect of histamine?
Sleepiness
Allergic reactions
Increased heart rate
Decreased blood pressure
Answer
Allergic reactions are a common effect of histamine, a chemical produced by the body's immune system in response to allergens. When the immune system detects an allergen, it releases histamine, causing symptoms such as sneezing, watery eyes, and a runny nose. In some severe cases, histamine can also lead to anaphylaxis, a life-threatening condition.
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