用加湿器熏醋能防感冒？白忙活

Group 1: Flu Prevention Myths - The claim that adding vinegar or herbal remedies to humidifiers can prevent colds is misleading, as it may harm the respiratory system instead [4][5] - Humidifiers should only use purified water to minimize health risks, and should be cleaned weekly to prevent microbial growth [4][5] Group 2: HPV Vaccine Misconceptions - The assertion that the HPV vaccine causes infertility is unfounded; the vaccine is safe and does not affect reproductive health [2][3] - Authorities like WHO and the Chinese CDC confirm that the HPV vaccine is crucial for protecting women's reproductive health and reducing cervical cancer risks [2] Group 3: Foot Soaking Practices - The belief that soaking feet until sweating is ideal can be risky for older adults, as it may lead to fatigue and increased susceptibility to colds [7][8] - Recommended foot soaking practices include using warm water (around 40°C) for 15-20 minutes, avoiding immediate sleep after soaking, and waiting an hour post-meal to soak [9][8] Group 4: Heating Products Safety - Concerns about electric blankets causing cancer due to radiation are exaggerated; they produce low-frequency electromagnetic fields below safety standards [6] - Proper use of heating products like electric blankets and hot water bottles is essential to avoid low-temperature burns, especially for vulnerable populations [10][11]