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With some heavy snows & cold about the country this might be helpful
http://kplr11.com/2014/01/02/surprising-cold-weather-tips-that-can-save-lives/ST. LOUIS, MO (KTVI)– This week’s bone chilling temperatures present danger to people in the region.
Nurses at St. Anthony’s Hospital said the cold weather is something that is dangerous for “people of all ages.”
They say people should wait 30 minutes after waking up to do any physical activity. The blood is more prone to clotting right after someone wakes up.
They also say do not eat a heavy meal because that diverts blood from your heart to your stomach.
They also warn that people should not smoke of drink coffee an hour before or an hour after any physical activity. Both elevate blood pressure.