On 01/07/2020 14:31, Bret Cahill wrote:

Don't overdo it -- a combination of unplanned cycling mileage + a cold snap + stress/lack of sleep will get me a cold -- but don't use that as an excuse to not cycle most days of the week.


https://www.telegraph.co.uk/news/202...oped-immunity/

Cease worrying.

"...a combination of unplanned cycling mileage + a cold snap +
stress/lack of sleep" will not give you a cold or another similar
illness. At least, not on their own.

Colds and flu are caised by virus infections, not by being cold, tired
or stressed.