During a heat wave, staying cool and hydrated is essential. Drink plenty of water throughout the day, even if you don’t feel thirsty, to prevent dehydration. Avoid alcohol and caffeine, as they can dehydrate you further. Wear lightweight, loose-fitting clothing and stay in air-conditioned spaces whenever possible. If air conditioning is unavailable, use fans, take cool showers, or visit public cooling centers to lower your body temperature.