Is it harmful to the body to use an electric fan?
Jul 11, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Under normal circumstances, correct and proper use of electric fans is harmless to the human body and can help reduce body temperature and provide relief during hot weather. However, improper use or certain health conditions may lead to adverse effects. To use electric fans safely and healthily, avoid prolonged direct exposure of any one body part to the airflow. Instead, adjust the fan's angle or use the oscillation feature.
Generally speaking, using electric fans correctly and appropriately is harmless to the human body and can help reduce body temperature and provide relief during hot weather. However, improper use or certain health conditions may lead to some adverse effects. A detailed analysis is as follows:
In the hot summer months, using electric fans can effectively lower indoor temperatures, create a cooler environment, assist the body in dissipating heat, and help prevent heat-related illnesses such as heatstroke and heat exhaustion. Additionally, electric fans are beneficial in environments requiring good air circulation by providing effective ventilation.
If an electric fan blows directly on the head, neck, or joints for extended periods, it may cause local blood vessel constriction, muscle stiffness, or symptoms of common colds. This is particularly problematic for individuals with rheumatoid arthritis or cervical spine disorders, as it may trigger pain or exacerbate inflammation.
To use electric fans safely and healthily, avoid directing the airflow continuously at one part of the body for long periods. Adjust the fan's angle or use the oscillation feature. When using a fan at night during sleep, it is advisable to lower the fan speed to prevent catching a chill.
