Rosemary has three active components that can give the immune system a boost: anti-inflammatories, antioxidants, and anti-carcinogenic. Rosemary can help you to avoid getting sick during times of the year when colds and flu are running rampant. You can add rosemary to tea, especially if you feel a cold coming. Rosemary may also help reduce coughs and the accumulation of phlegm in the respiratory system when you are sick.

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