Solution for summer heat in the car: This method keeps the interior as much as 10 degrees cooler

In the height of summer, heatwaves bring both joy and danger, particularly for vulnerable groups such as the elderly, children, and individuals with chronic illnesses. Dr. Ema Cindro Kostelec, a medical expert known online under the name MedZdravje, has issued warnings about common misconceptions and health risks associated with hot weather. She emphasizes that while many view high temperatures as merely uncomfortable, they can quickly become life-threatening. “We must pay special attention to older adults, especially if they behave strangely, appear confused, or show signs of heatstroke,” she explains. She warns that even if someone refuses to cool down, immediate action, calling emergency services, is crucial. Dr. Kostelec also highlights the dangers faced by young children, noting that dehydration can develop rapidly in infants and toddlers. “Children often cry without tears, which indicates they are dehydrated,” she says. Dehydration, according to her, is one of the biggest threats during the summer months. She recommends regular hydration, staying in shade, and avoiding peak sun hours. Additionally, she addresses common myths surrounding wound care, warning against using alcohol to clean injuries. “Alcohol kills bacteria, but it also damages healthy tissue,” she explains. The correct approach involves cleaning wounds with water or saline solution followed by the application of appropriate antiseptics. Hydrogen peroxide, she adds, can also irritate tissues and slow healing. Another misconception she tackles is the belief that cold sprays or cooling gels can effectively treat injuries. “These sprays contain cooling agents intended for temporary relief of pain, not for treating wounds,” she clarifies. Misusing them could lead to cold burns or further injury. Dr. Kostelec also discusses why people often feel more creative or inspired during the summer, suggesting that changes in body chemistry and hormonal activity might play a role. However, she stresses that these effects should not overshadow the importance of proper health precautions. The issue of cardiovascular strain during extreme heat is also highlighted by cardiologist Dr. Nieca Goldberg. She points out that prolonged exposure to high temperatures can cause dangerous drops in blood pressure. “When the body overheats, blood vessels dilate to release heat, leading to a rapid drop in blood pressure,” she explains. This effect is exacerbated by dehydration, which reduces blood volume. Dr. Goldberg warns that this can result in severe weakness, dizziness, and even fainting, especially upon sudden movement. For individuals with heart conditions, low blood pressure, obesity, or diabetes, the risk is significantly higher. A study published in Circulation Research in 2024 found a clear link between rising temperatures and increased incidence of cardiovascular diseases, with mortality rates increasing by over two percent for each additional degree of temperature. Dr. Goldberg advises proactive measures to stay safe during the hottest days. These include scheduling outdoor activities during cooler parts of the day, drinking plenty of fluids, wearing light clothing, and seeking shelter in shaded or air-conditioned spaces. She also outlines key symptoms indicating overexertion of the cardiovascular system, such as extreme fatigue, rapid heartbeat, chest pain, and difficulty breathing. “Never ignore these symptoms,” she urges. If they persist or worsen, immediate medical assistance is necessary. Proper hydration and timely intervention are essential for surviving the most intense heat periods. Travel by air, though generally considered safe, presents unique challenges for the human body. A recent study revealed that approximately one in every 212 airline passengers experiences some form of health issue during flights, ranging from minor injuries to heart attacks. While air travel is among the safest modes of transportation, the physical demands placed on the body can be significant. One major factor is the change in cabin pressure, which mimics altitudes around 2,400 meters. This affects systems sensitive to gas dynamics, including the respiratory and digestive systems. As altitude increases, the concentration of oxygen available to the body decreases, prompting faster breathing and increased heart rate to compensate. Individuals with pre-existing heart or lung conditions may find these changes particularly challenging. Dehydration is another critical concern during flight. Low humidity inside aircraft cabins causes the body to lose moisture rapidly, affecting skin, eyes, nose, and throat. Passengers can lose up to 360 milliliters of fluid per hour, contributing to thicker blood and increased strain on the heart. Thicker blood raises the risk of forming clots, such as deep vein thrombosis. Dizziness, commonly referred to as "air sickness," is also prevalent. It is often caused by orthostatic hypotension, a condition where blood flow to the brain slows after standing too quickly. Alcohol, dehydration, and specific environmental factors within the aircraft can exacerbate this issue. Food served at high altitudes may also contribute, as lower sensitivity to taste leads to saltier flavors, further promoting dehydration. Digestive issues are another frequent problem during flights. Gas buildup in the intestines expands due to reduced cabin pressure, causing discomfort and bloating. Foods like beans, broccoli, onions, red meat, leeks, and gluten-containing items can intensify these symptoms. In rare cases, severe gastrointestinal distress, known as "air stomach" or "flight belly," can force airlines to alter their routes. For example, in 2023, an airplane flying from Atlanta to Spain had to return to the United States after a passenger suffered a severe stomach cramp. To minimize health risks during travel, experts recommend staying hydrated before and throughout the journey. Medication users should plan their dosages carefully to avoid missing doses due to time zone changes. Light exercise, such as walking in the aisle, can help maintain circulation and reduce the risk of complications. By following these guidelines, travelers can better navigate the unique challenges posed by summer heat and long-haul flights.