It seems that most people respond positively to queries about their well- being when weather conditions are favorable. When the weather factor tends to be depressing, so too goes their mood and sense of good feeling. It may be that this is an age-long truism, perhaps dating back more than 2,000 years when a very wise Greek physician named Hippocrates uncovered a link between daily and seasonal weather and human health and disease. That is one of the reasons why historians regarded him as the "Father of Medicine." Since his early findings, countless investigations and medical studies have confirmed his conclusion that weather and health are interrelated.
Today medical experts take into account the important effects of weather in making diagnoses and in prescribing therapy for their patients. More than ever they have become conditioned to the harmful ways extreme heat or cold, air pollen, the sun's rays, wind, humidity, or smog can be underlying causes of illness. Such chronic and acute ailments, such as respiratory disorders, lung problems, heart failure, heat exhaustion, and heatstroke, may be weather related, particularly during heat waves. During excessive cold spells physicians treat many more cases of respiratory infections, namely pneumonia, bronchitis, and influenza. Surprisingly, medical research has found the "common" cold is not caused solely by people "catching" it during periods of bad weather (a sudden drop in temperature) but more likely by an infection brought on by a virus when an exposed person is in a receptive state. People experiencing fatigue, especially during winter months while working indoors close to others, are more susceptible to getting a cold from a germ-carrying colleague they may have contact with.
According to physiological studies, children tend to be less affected by hot and humid weather than adults. Older people are more lethargic, edgy, and impatient during climatic discomforts. They also seem to be less alert, slower in judgment, and less tolerant during times when they "feel" the weather.