I agree with Dr.Ron Eccles It is a known fact that extreme
variations of temperatures beyond 37.C , the immune mechanism
decreases. During the winter and cold seasons there will be sudden
change in the temp.and we will be breathing cold air.
Cold air causes Vasoconstriction thereby less number of macrophases
reach the site and less phagositosis takes place.There will be
reduction of the immune mechanism of the nasal and Nasopharyngeal
mucosa. As the bacteria and viruses are already in the atmosphere, they
infect the Mucus membrane causing Inflamation and corryza
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