“For people taking medications for chronic medical conditions, it’s very important to know your medications and your conditions to see if they put you at an increased risk of heat stroke,” Dr. Bangash said. “In those cases, you have to take it easy, try to avoid the hottest parts of the day and limit the time spent outdoors during a heat wave specifically.” Be careful when traveling “When traveling, it’s important to be aware of areas with a heat index of more than 90 degrees or with rapid changes in climate during the early summer heat wave, as it puts you at a much higher likelihood of heat stroke,” Dr. Bangash said. “Whether it’s an area where you live or where you’re traveling, you have to be very careful about what the temperature changes and heat indices are going to be on those days.” Avoid strenuous activities “All kinds of strenuous activities for prolonged periods in high temperatures will put you at risk,” Dr. Bangash said. “But the most common ones that we'll see are military training, and sports such as football, soccer, basketball or long-distance running.”