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It adds complexity and a slightly spicy character to cigarette blends and is used in smaller proportions than Virginia or Burley

There is also the added risk of picking up diseases such as herpes, hepatitis C or tuberculosis from sharing waterpipes

Second-hand smoke has been linked to respiratory diseases, allergies, and cancer in dogs and cats, and has been shown to cause eye and skin diseases, cancer, and respiratory problems in birds

For example, some pain relievers, cold medicines, and over-the-counter medicines for alertness contain synthetic caffeine, as do energy drinks, energy-boosting gums, and snacks (Medline Plus, 2021)