Shoes directly affect the health of science

Shoes are more than just a fashion statement—they serve a fundamental purpose: to protect the feet and promote overall health. However, as the climate changes from cold to warm, dry to wet, a wide variety of shoes have been developed to suit different conditions. In this way, shoes, climate, comfort, and health form a “trinity” focused on the feet. Choosing the right footwear based on the weather isn’t just about style—it’s about maintaining foot and body well-being. The saying “cold starts from the top” is not just a myth. Scientific studies have shown that the feet are closely connected to the upper respiratory system. When your feet get cold, it can cause blood vessels in the nasal passages to constrict, slowing down ciliary movement and weakening the body’s ability to fight off viruses. This makes you more prone to colds and other respiratory illnesses. Wearing warm shoes not only keeps your feet comfortable but also supports your overall health. In Northeast China, for example, Ula shoes have a long history of being worn in extreme cold. Made from cowhide or deerskin, these shoes are seamless, making them durable and resistant to ice and mud. They’re often filled with Uluru grass, which adds softness and warmth, ideal for winter conditions. A pair of Ula shoes once worn by Emperor Nurhaci of the Qing Dynasty is still preserved in the Shenyang Imperial Palace today. As living standards improve, people pay more attention to aesthetics, but in cold weather, choosing warm fur or cotton-lined shoes is still essential. If wearing leather shoes, opt for natural leather, as it breathes better than synthetic alternatives. In regions with high rainfall, such as Venice, Italy, high-soled and high-heeled shoes became popular to avoid getting wet. Women would wear elevated shoes to keep their skirts and feet dry. Similarly, in the water towns of Jiangnan, China, high heels were once a trend. As noted in *Shoes and Socks Discrimination* by Yu Huai, "the high heel has become a unique feature among women in Wu." Beyond beauty, these shoes helped prevent moisture from soaking into clothes. However, high heels shouldn’t be worn for extended periods, as they can lead to blisters. For those who love heels, a height of 2–3.3 cm is recommended for comfort and health. In summer, especially in the Yangtze River Valley, many outdoor workers prefer open-toed sandals for breathability and cooling. In arid desert areas like the Tarim Basin, where temperatures can soar above 70°C, “Qurarak” shoes made of cowhide and felt are essential for insulation. While sandals and slippers are convenient in summer, some rubber or plastic varieties may cause “cold (tow) shoe dermatitis” due to chemicals used in manufacturing. To avoid this, opt for cloth, wooden, or leather slippers, which are gentler on the skin. Choosing the right shoes also involves considering the “micro-environment” inside the shoe. There should be enough space between your feet and the shoe—about the width of a thumb—to allow for proper airflow and prevent discomfort. In summer, this helps reduce sweat and odor, while in winter, it prevents poor circulation. Properly fitted shoes ensure full contact with the ground, stimulating the reflex zones on the soles, which can benefit overall health. Traditional Chinese medicine practitioners often recommend buying shoes in the late afternoon, when feet are most swollen, ensuring the best fit. **Additional Tips:** - Old shoes at home can be transformed into stylish accessories with creative upgrades. - Don’t throw away old shoes—repurpose them instead to give them a new life. - Protect your shoes with a physical insurance plan to extend their lifespan. - Learn how to clean matte shoes to keep them looking fresh. - Wear breathable, antibacterial socks to prevent bad odors in your shoes. - Sports shoes have hidden functions in their little tails that you might not know about. - High heels can make noise—here are four ways to reduce the sound. - Choosing the right shoes during pregnancy is crucial; flat shoes may not always be the safest option. - If your shoes get moldy, there are effective ways to clean and restore them. - Some summer shoes may actually harm your feet—be cautious about what you wear.

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