温暖化。シャツイン?シャツアウト?

シャツをインすると熱中症の危険性が高まる。ちなみに、世界の気温と湿度の平均不快指数ランキングでは日本は4位大阪、5位東京。但し、不快指数最高は日本。

Your risk of heat stroke increases when you put the hem of your shirt into your pants. By the way, in the average discomfort index ranking of temperature and humidity in the world, Japan ranks 4th in Osaka and 5th in Tokyo. However, the highest discomfort index was recorded in the Japanese cities.