i think that the USA is getting soft . But nowadays its too cold or too hot and drink plenty of water . And don't breath too deep in 50 below weather which never affected me in many days of 50 below weather as i was going to school or outdoors work on the RailRoad in the great area known as the UPPER Peninsula of Michigan , Marquette area on the shore of Lake Superior . If the roads are clear and the Buses start , its off to work or School . Dress warm , don't go to sleep in your bathing suit in a snowbank and a person will be fine .