- Wildfire smoke and your health: Do you need to worry? – CNN
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- US coronavirus: Air pollution from wildfires can make people more vulnerable to Covid-19 – CNN
- Had Covid-19? Don’t Assume You Can’t Get It Again. – WSJ
- Major Life Changes Happen With Clocklike Regularity – The Atlantic
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上週末因加州野火的空氣污染，並沒有出門。趁著雨停的空檔，到 Saint Edward State Park 走走。
到了公園雖然已經四點半，但是還是有滿多的車子。
沿著公園外圍步道走一圈，花了約一個小時十分鐘。
回到了停車場不久，雨又開始下來。