In my opinion I think it affects them a lot but it’s different for everyone but some people do change after that
Trustworthy would be a government website.
Untrustworthy would be a media report
Hope this helps!
You should always stretch Before your workout. By stretching before your workout you will prevent potential injuries as well as being less sore after the workout.
That depends what type of food, i think that’s too hot for almost all foods though. You should wait for it to cool down.