腳踏車

• Older men with high body-mass index have more sperm cell irregularities — ScienceDaily
• Here’s what could happen if Roe v. Wade is overturned : NPR
• Newer, fitter descendants of Omicron variant begin to drive their own coronavirus waves | CNN
• Testing Positive for the Coronavirus Overseas: What You Need to Know – The New York Times
• COVID-19 vaccine technique shows promise for heart disease — ScienceDaily

繞了遠一點的圈子，到波音附近的輕工業區，7.5 英哩，45 分鐘。