In a study reviewed in the journal of the American Cancer Society, researchers found that people who drink either tea or coffee have a slightly lower risk of head and neck cancers, though it was unclear if the drinks actually lowered the risk.

In the latest statistical salvo of an ongoing debate, people who consumed more than four cups of caffeinated coffee daily had a lower risk of head and neck cancer (HNC), according to a meta-analysis of 14 published studies.