Although long-term air conditioning in summer brings a comfortable indoor environment, it may also have adverse effects on physical health and quality of life. First, the operation of air conditioning can cause indoor air to become dry, which may negatively affect the respiratory tract, skin, and eyes. Prolonged exposure to air conditioning may lead to respiratory infections, dry skin, itching, and dry eyes. In addition, air conditioning may also increase indoor air pollution; if the air conditioning filter system is poor, it can increase the bacteria, viruses, and allergens in the air, posing a threat to human health.

Secondly, being in an air-conditioned room for a long time may reduce the body's immunity. Because air conditioning increases the temperature difference between indoors and outdoors, long-term exposure to such an environment may reduce the body's ability to adapt to temperature changes, making it easier to catch colds, coughs, and other illnesses. Moreover, people who often stay in air-conditioned rooms may be less willing to engage in outdoor activities, lacking regular exercise, which further affects physical health.

Long-term use of air conditioning may also impact the ecological environment. The operation of air conditioning consumes a large amount of energy, which may lead to energy shortages and environmental pollution. In addition, some old air conditioning units use refrigerants that are harmful to the ozone layer, exacerbating global climate change issues. Therefore, in the context of energy conservation and environmental protection, excessive reliance on air conditioning is not a sustainable lifestyle.

Furthermore, prolonged use of air conditioning may affect interpersonal communication. In summer, people tend to stay in air-conditioned rooms more, which may reduce face-to-face communication and increase feelings of isolation. This can have adverse effects on mental health and the establishment of interpersonal relationships.

There are many disadvantages to long-term air conditioning in summer. In this context, we should seek healthier and more environmentally friendly lifestyles to cope with high temperatures. Here are some suggestions:

• Adjust indoor temperature reasonably: Use air conditioning moderately and avoid setting the indoor temperature too low. Generally, maintaining a temperature difference of 5-7°C between indoors and outdoors is appropriate.
• Regularly clean the air conditioning: Regularly clean the air conditioning filter and maintain the cooling system to ensure the efficiency of the air conditioning and the quality of indoor air.
• Increase indoor plants: Planting some indoor plants helps maintain air humidity and improve air quality.
• Proper ventilation: Frequently open windows for ventilation to keep indoor air circulating and reduce indoor air pollution.
• Timely outdoor activities: Develop good exercise habits to enhance physical immunity and adapt to climate changes.
• Reduce energy consumption: Choose energy-efficient air conditioning equipment and reasonably control the usage time of air conditioning to lower energy consumption.
• Maintain interpersonal communication: Overcome excessive reliance on air conditioning, actively participate in social activities, and enhance interpersonal relationships.

Indeed, there are certain disadvantages to long-term air conditioning in summer, but by using air conditioning reasonably and adjusting our lifestyle, we can reduce the impact of these disadvantages. At the same time, we should not only focus on our own health but also care about environmental protection, contributing together to create a green and low-carbon future.