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Rafal Tokarz, PhD, an assistant professor of epidemiology with expertise in tick-borne pathogens and diseases, shares his recommendations for protecting you, your family, and your pets from ticks.

A Columbia mental health expert explains how grief impacts the body and shares ways to handle this difficult emotion 

Our prostate cancer expert explains the disease’s symptoms, diagnosis, and treatments—and why it’s important to catch it early.

Our environmental health researcher explains how metals end up in what we eat and how to lower the risk of exposure.