活性酸素の発生は危険なのです! https://impression-design.com/2019/12/23/%e6%b4%bb%e6%80%a7%e9%85%b8%e7%b4%a0%e3%81%ae%e7%99%ba%e7%94%9f%e3%81%a7%e3%80%81%e3%80%81%e5%8d%b1%e9%99%ba%e3%81%aa%e3%82%93%e3%81%a7%e3%81%99%e2%80%bc%ef%b8%8f/