Sleeping with a Fan: Risks and Tips.With hotter UK nights and few homes having air conditioning, many use fans to stay cool. But Dr. Naheed Ali warns fans can cause:

• Dry throat and congestion
• Allergy or asthma flare-ups from stirred dust and pollen
• Muscle stiffness from cold airflow

Safe fan use tips:

• Use a timer to run fan only for first 90 minutes
• Avoid direct airflow—point fan at a wall
• Stay hydrated
• Keep bedding and filters clean

Fans help beat the heat but use these tips to avoid discomfort or health issues.