Why do I keep getting colds in winter?

Recurrent winter colds are usually caused by increased viral exposure, indoor crowding, and seasonal immune changes. In this episode, we explain why upper respiratory infections are more common in colder months and how risk is assessed in Europe.

In this episode, we cover:

• What the common cold is (a viral upper respiratory tract infection)

• Why cold weather leads to more indoor transmission

• The role of low humidity and dry air on nasal defences

• Sleep, stress, and immune function

• Vitamin D considerations during winter months

• Differences between colds, influenza, and sinus infections

• When repeated infections may suggest an underlying issue

• Why antibiotics are not appropriate for most colds

• Red flag symptoms  ...