Human health can be adversely affected by odours. Some odours have immediate and apparent effects, but others may have long-term health implications.
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Certain odours, for example, can irritate the eyes, nose, throat, and lungs, resulting in respiratory difficulties. Certain odours may cause allergic reactions in some people, such as runny noses, itching, and watery eyes. Migraines can occur in some persons, accompanied by a headache.
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Unpleasant odours can create worry and anxiety in some people, resulting in an accelerated heart rate, blood pressure, and
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