Drink hot coffee or tea
Hot coffee is king in Brazil, a country that surrounds the equator, and you'd be hard-pressed to find a café willing to sell you iced coffee there. Could the locals also be onto something?
Some researchers think so.
According to Ollie Jay, a researcher at the University of Ottawa's School of Human Kinetics who has studied hot fluid ingestion's effect on body heat storage, drinking hot coffee or tea will result in a lower amount of heat stored inside your body as long the additional sweat you produce can evaporate.
"What we found is that when you ingest a hot drink, you actually have a disproportionate increase in the amount that you sweat," Jay told Smithsonian. "Yes, the hot drink is hotter than your body temperature, so you are adding heat to the body, but the amount that you increase your sweating by — if that can all evaporate — more than compensates for the added heat to the body from the fluid."
While your neighbors may not love you for it, increasing how much you sweat is an effective strategy for staying cool. When sweat evaporates from your skin, energy is absorbed into the air, and this cools your body significantly.