With UK households facing hotter nights — and only 5% having air conditioning — many are turning to electric fans. But Dr. Naheed Ali, a health specialist, warns that sleeping with a fan all night may come with hidden health risks:

Potential Health Risks of Sleeping with a Fan On
Dry throat & sinuses: Constant airflow can dry out your airways, causing:

Thicker mucus

Coughing or scratchy voice

Congestion that lasts all day

Worsened allergies or asthma:

Fans stir up dust, lint, dander, and pollen

These particles can trigger tight chest or sneezing

Muscle stiffness:

Exposure to a cold air stream can cause neck and shoulder tension by making muscles constrict

Doctor’s Tips to Use a Fan Safely
Use a timer – Set the fan to turn off after the first 90 minutes of sleep.

Avoid direct airflow – Point it at a wall to reduce intensity.

Stay hydrated – Keep water nearby for dry mouth or throat.

Limit allergens:

Wash bedding weekly

Replace or clean air filters regularly

Bottom line: Fans can help with summer sleep, but if you rely on them, use these precautions to avoid dryness, allergy flare-ups, or muscle pain.