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Herbal Tea
Herbal teas are fashionable these days, and many people regard them as a refreshing caffeine-free alternative to coffee and ordinary tea. Many even believe that they must have beneficial effects because they are sold in health food stores.

Actually, according to emergency Medicine, many herbal teas are potentially much less safe than conventional tea and are capable of producing headaches, diarrhea, dermatitis, asthma, insomnia, heart rhythm disturbances, seizures, and liver disease (even cancer) when taken regularly for a long time.