The soft light of candles helps to relax and set the mood for rest—that's why many enjoy lighting them at home in the evening. However, as modern research shows, even such a seemingly harmless tradition can have hidden health effects that are important to know about.
Candles and Surrounding Air
A burning candle is not only about coziness and romance but also a source of combustion products that enter the air. Scientists from the University of Birmingham have found that candle smoke can reduce the brain's ability to concentrate and weaken cognitive functions after just a few hours in a room with burning candles.
During the experiment, participants were divided into two groups: one was left in a room with regular lighting, while the other was in a room with burning candles. After several hours of exposure, individuals in the second group experienced difficulties in recognizing emotions and concentrating, reflecting the impact of polluted air on brain function.
What Exactly is Dangerous
According to experts, the fumes from burning candles release tiny particles that are easily inhaled and settle in the respiratory tract. Over time, frequent inhalation of such compounds can lead to inflammatory processes and even increase health risks, including lung and cardiovascular diseases—especially with frequent use of scented candles or poor room ventilation.
Some studies show that such fine particles can worsen the condition of the respiratory tract over time and contribute to the development of chronic problems, particularly in those who spend a lot of time in poorly ventilated rooms with candles.
What Scientists Consider Important
Experts emphasize that one evening with a couple of candles is unlikely to cause serious harm, but regular and prolonged exposure to burning smoke is a different matter. Frequent evenings with lit candles can accumulate harmful particles in the air, and over time this may affect the health of the respiratory and cardiovascular systems.
How to Make Coziness Safer
If you enjoy creating a pleasant atmosphere but want to reduce health risks, specialists recommend:
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choosing candles made from natural wax (such as beeswax or soy) instead of paraffin;
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regularly ventilating the room during and after using candles;
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limiting burning time to keep the air relatively clean;
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considering alternatives such as diffusers or aromatic sachets that do not require an open flame.
These simple measures can help maintain coziness without compromising indoor air quality and reducing potential health risks.
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