Because Heart attacks and stroke have a positive correlation with air pollution and particulate matter from autos and factories.
Since the country is at a stand still there is significantly less air pollution and particulate matter so a drop in strokes and heart attacks is to be expected.
Hope that helps.
Anything in notables was verified and then nominated by an anon. Only at that point was it even considered by Bakers.
Yes they were bad-assed.
Yes, high pollution days are deadly got those at risk. That's why people are warned to stay indoors.
"Scores of children and adults are being rushed to hospital for emergency treatment on days of high pollution in cities across England, figures show.
Each year emergency services see more than 120 additional cardiac arrests, more than 230 additional strokes and nearly 200 more people with asthma requiring hospital treatment on days of high pollution compared with the average on days of lower pollution."
https://www.theguardian.com/environment/2019/oct/21/scores-more-heart-attacks-and-strokes-on-high-pollution-days-figures-show