Apart from respiratory infections: cardiovascular events. There was a famous paper about guys dropping dead while/after cleaning snow from the sidewalks/drivewa

Apart from respiratory infections: cardiovascular events. There was a famous paper about guys dropping dead while/after cleaning snow from the sidewalks/driveways (Illinois?). Not necessary from the physical shovelling but from just riding a domestic snowplow. It is good enough be exposed to cold: vessels constrict, blood pressure rises, you may drop dead when old, obese, unfit and with atherosclerosis. *edit*: article stating that the spikes in mortality were within 3 days of a cold blast. https://academic.oup.com/aje/article/155/1/80/134292 https://academic.oup.com/aje/article/155/1/80/134292