Supported by a grant from GlaxoSmithKline (GSK)
Alcohol acts like a sedative and will reduce muscle tone in the upper airway.
Allergy to pollen is generally seasonal. Tree, weed, grass and mould pollens are all allergens and affect around 20% of the population. The main symptoms of pollen allergy are runny, blocked nose. This can make breathing difficult at night giving rise to snoring.