3/29    Is it better to open all the windows and breath fresh air but
        sleep at chilling 50F or close all the windows and live comfortably
        with stale air at 65F? I hear pros and cons from both sides. My
        German friends think fresh air and cold temperature build
        strength. On the other hand cold weather increases the chance
        of flu and cold transmission, no?
        \_ Stale air means more sharing between people, which increases the
           chance of virus transmission.  Strike a balance between temperature
           and staleness and go on with your life.
        \_ Air out your house during the day and close the windows at night.
           Also, as above poster suggests, stop sleeping with sick people.
        \_ Agree with the previous poster. Open the window during the
           day to get some air exchange, and close it at night. It
           also depends on where you live. If you live close to a busy
           street, you might want to open your window more
           selectively, say avoid commute hours. If you are rich and
           live in the hills, then you can probably open it anytime
           you want. What you don't want, is to have the same air
           circulate over and over again during the entire winter. You
           may think this is common sense but I've been to houses (in
           the bay area non less) where the air quality is just bad
           and all I want to do is to open the window.
        \_ ZE COLD AIR MAKES US STRONG FOR ZE RUSSIAN WINTER.  -John