Neat News 713 (added 2017-12-13)
Boosting the Immune System against Colds

Public Domain by Bruce Wetzel, Harry Schaefer
Sport and healthy eating with fruit to provide vitamins are a standard recommendation to prevent colds. In addition it is better during winter to put a jumper on in the house than to heat up rooms to summer temperatures, better to prevent a cold, but of course also better for the environment.