For millions of Americans, summer has always meant backyard barbecues, baseball games, and long sunny evenings. But this year this season looks quite different.A powerful heat wave is expected to sweep across much of the United States over the Fourth of July weekend, with the National Weather Service warning that more than 100 million people could face dangerous temperatures. In some places, the heat index can rise to 46°C (115°F), making even a short walk outside risky.Unlike India or many countries close to the equator, the US, Britain and much of Northern Europe have spent generations preparing for cool winters, not scorching summers. Older homes are also designed to trap heat. Air conditioning is common in some parts of the US, especially in the South, but less so in the Pacific Northwest and many older cities. In the UK, it is still rare in homes.As temperatures continue to break records, people are looking for ways to cool off without increasing electricity bills. Some people are buying portable coolers and blackout curtains.In such a scenario, it is appropriate to take a look at the ideas that have existed for hundreds of years in countries where living with extreme heat has always been a part of daily life.
keep the sun out before it comes in
Anyone who has spent summers in India knows the daily routine here. Windows are opened at sunrise to let in the cool morning breeze. By late morning, curtains, drapes and shutters are closed before the afternoon sun hits the house.It may seem simple, but it is one of the oldest methods of keeping the temperature down indoors. During a heat wave, sunlight streaming through windows can instantly turn a room into a greenhouse.That’s why it’s recommended to keep curtains closed during the hottest times of the day, especially on windows that receive direct sunlight. Blackout curtains and reflective window films have become popular because they help stop heat before it enters the home.
Cool the air naturally with water
Long before electricity became common, Indian homes had their own version of natural air conditioning. Woven screens made of khus or vetiver grass were placed on the windows and water was sprinkled on them throughout the day.As the hot air passed through the moist grass, it was cooled before entering the room. The earthy scent was an added bonus. The same principle still operates in modern evaporative coolers sold today.Japan has a similar tradition called Uchimizu, where people sprinkle water outside homes and streets during hot afternoons. The evaporating water helps cool the surrounding air. Technology may have changed, but science has not changed.
wear more, not less
When visitors first see the long robes worn in the Middle East and North Africa, they often assume they will feel unbearable heat. However, loose clothing creates a layer of moving air between the fabric and the skin.Airflow helps evaporate sweat, while also protecting the body from direct sunlight. Additionally, cotton clothing breathes better than tight synthetic clothing that traps heat.
eat water rich food
In many parts of Africa and India, summer meals typically include water-rich fruits and vegetables that help the body replenish fluids lost through sweating.Watermelon is a favorite in countries like Nigeria, Ghana and Sudan; While cucumbers, oranges and other seasonal fruits are often eaten during the hottest months. These foods are rich in water and minerals which get destroyed in extreme heat.
fan the japanese way
Not every solution has to be high-tech. Long before battery-powered fans came along, people in China and Japan carried folding fans with them wherever they went. They were lightweight, reusable and did not require electricity.Even today, they remain one of the simplest ways to create instant airflow while waiting for a train, walking outside or sitting during a power cut.