Nearly all of Michigan is under an extreme heat warning or advisory as we approach Independence Day weekend, with the heat index — what it actually feels like outside— exceeding 105 degrees Fahrenheit in many places. Babies, children and the elderly are at a higher risk of heat-related illness.

Knowing the right precautions to take can save lives. Dr. Phillip Levy is an emergency physician and professor at Wayne State University’s School of Medicine. He joined Robyn Vincent on The Metro to explain how the body cools itself and describe essential preventative measures to take during a heatwave.