Remain cool this summer

Here is a comprehensive guide to staying cool in the summer, ranging from no-cost habits to smart investments.

1. Master Your Home's Environment (Without AC)

• The Nighttime Flush: Open windows on opposite sides of your home at night to create cross-breezes. Close them at sunrise to trap the cooler air.

• Strategic Shading: Close blinds, curtains, or shutters on south and west-facing windows during the day. Blackout curtains (preferably white or reflective on the window side) work best.

• Kill the Heat Sources: Incandescent bulbs, computers left on, and even phone chargers generate heat. Turn off and unplug anything you aren't using.

• The Fan and Ice Trick: Place a deep bowl of ice or a frozen gallon jug in front of a floor fan. The air blowing over the ice will be noticeably cooler.

2. Cool Your Body, Not Just the Room

• Pulse Point Ice Packs: Apply a cold pack, cool wet cloth, or even frozen peas to your wrists, neck, inner elbows, and ankles. Blood vessels are close to the skin there, cooling your whole body quickly.

• Reverse the Ceiling Fan: Ensure your fan is spinning counter-clockwise (pushing air straight down). The "wind chill" effect cools your skin by 4°F.

• Spray & Mist: Fill a spray bottle with water and a few drops of peppermint or eucalyptus oil (they create a cooling sensation). Mist your face and arms.

• Soak a Bandana: Wet a bandana with cool water, wring it out, and tie it around your neck. Re-wet as needed.

3. Smart Clothing & Diet

• Fabric Matters: Avoid cotton (it holds sweat). Wear linen, bamboo, or moisture-wicking athletic fabrics (polyester, nylon blends). Light colors reflect heat.

• Hydrate Strategically: Drink water before you feel thirsty. Avoid excessive alcohol, caffeine, and high-sugar drinks (they can dehydrate you).

• Eat Small & "Wet": Large, heavy meals (especially protein-rich ones) increase metabolic heat. Opt for salads, watermelon, cucumber, tomatoes, and celery – they're high in water content.

4. Low-Cost & DIY Solutions

• DIY Swamp Cooler: If you're in a dry climate, hang a wet sheet in front of an open window. As wind passes through the damp fabric, it cools the air dramatically.

• Aluminum Foil on Windows: Taping aluminum foil (shiny side out) onto windows reflects sunlight. Be careful not to trap heat against double-pane windows, which can break seals.

• Sleep Low: Hot air rises. Move your mattress or a sleeping bag to the lowest floor of your house (basement, ground floor) on the worst nights.

5. When You're Outdoors or in a Car

• The "Sun Shield" Dash: Put a foldable sunshade in your windshield. Park in shade or with your rear window facing the sun.

• Cool Down the Car Fast: Before turning on AC, roll down all windows for 30 seconds to blast out the superheated air. Then close windows and turn AC on "re-circulate."

• Damp Hat: Wet your baseball cap or sun hat before putting it on. Evaporation will cool your head for up to 30 minutes.

What to Avoid

• Relying only on a fan in a sealed, hot room. Once room temperature rises above your skin temp (~95°F+), fans just blow hot air and can actually increase dehydration. Leave a window slightly open.

• Taking an ice-cold shower immediately after coming inside. It can shock your system and cause you to actually sweat more later (rebound heat). Use cool (not freezing) water.

By Jamuna Rangachari