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 requiring in-person medical review

Doctors assess infection frequency, duration, fever pattern, underlying conditions (asthma, diabetes), smoking status, medication use, and immune risk factors before advising treatment. Persistent high fever, chest pain, breathing difficulty, or symptoms lasting beyond expected duration require in-person evaluation.

This episode reflects how seasonal respiratory infections are reviewed within structured medical assessment in European telemedicine at Mobi Doctor.

Read the full medical guide here:

https://www.mobidoctor.eu/blog/why-do-i-keep-getting-colds-in-winter