The Indonesian Express
The current extreme weather phenomenon, known as the wet dry season, is said to pose a serious threat to public health. Dr. Santi, Health Management Specialist from Corporate HR at Kompas Gramedia, said that drastic changes in temperature and humidity directly impact the human immune system. "During the transitional season, the immune system normally tends to weaken slightly," she said, as quoted by Kompas.com, Thursday (July 10, 2025). A dirty environment characterized by stagnant water not only spoils the view but also becomes an ideal breeding ground for various disease sources. The Aedes aegypti mosquito, which causes dengue fever, reproduces more rapidly, while water contaminated with rat urine can trigger leptospirosis or Hantavirus infection. "Spitting or blowing phlegm carelessly can also trigger disease transmission. Phlegm dries, leaving behind germs that are carried by the wind and can enter through the respiratory tract or through food," she said. Passive Lifestyles Risk Disease Dr. Santi also highlighted the habit of many people who are reluctant to engage in physical activity during unpredictable weather. Scorching heat or rain makes people tend to prefer staying at home. "Hot or rainy weather makes people reluctant to exercise. However, exercise is crucial for maintaining heart, lung, and immune system function," he said. Furthermore, the habit of gathering in closed, unventilated spaces and rarely drinking water in cold weather also worsens the condition. "Thirst decreases in the cold, resulting in people being reluctant to drink. Yet, fluids are essential for maintaining optimal immune function," he said.