Children and young people. In 2011-12, toddlers and pre-schoolers (aged 2â4 years) spent an average of around 6 hours per day engaged in physical activity. They also spent almost one and a half hours (83 minutes) in the sedentary activities of watching TV, DVDs or playing electronic games.
There are several factors that might contribute to throat congestion, including seasonal allergies, chronic bronchitis, and upper respiratory infections. Asthma, an illness known to constrict the upper airways, can also cause symptoms of congestion.
Postnasal drip also commonly causes excess mucus at the back of your nose and throat many times after eating. Excessive, thick phlegm or chest mucus can often be caused by viral or bacterial infections such as influenza, bronchitis and pneumonia, as well as irritants such as those inhaled during smoking. Chemotherapy also causes the immune system to overreact and excessive phlegm is often the result.