If everyone around me had the same results, why would I think of mine as special? No, family and friends go through their suffering on a regular basis, while I do not.
You do not seem to believe that the human body has its own defences, often thanks to our lifestyle.
As for lifestyle, I have been a heavy smoker from 12 years old till 65yo. Am now 76 and still cough every day, so damage was caused - yet that has not made me more susceptible to colds and flu. What if that is so because I almost never eat factory made food and try hard to avoid eating any GMO foods? I also do not eat more than two or three meals per year in a restaurant.
We should analyse and think about why we suffer more or less than others and try to look for what the causes could be in our lifestyle.
RE: Cold weather and colds