https://blog.wongcw.com/2020/11/09/fda%e6%89%b9%e5%87%86%e4%b8%80%e6%ac%be%e5%8f%af%e5%b9%ab%e5%8a%a9%e6%b2%bb%e7%99%82%e8%88%87ptsd%e7%9b%b8%e9%97%9c%e5%99%a9%e5%a4%a2%e5%95%8f%e9%a1%8c%e7%9a%84apple-watch%e6%87%89%e7%94%a8-2/