How long do I have to be outside in the cold weather without a jacket on to get sick?

Marco John

New member
For example, if I have to do something outside in the cold weather for approximately 1 to 2 minutes or longer because of my job, is it still necessary to wear a jacket in the cold weather to prevent any sickness? Or I don't have to because it's not a long enough period of time to be outside in the cold weather without a jacket on to get sick? I need a real accurate answer please. Thank you all.
 
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