Is a common holiday item putting you at risk for cancer and dementia?

As the holidays approach, many of us turn to candles for warmth and comfort. However, new findings suggest these festive staples could pose hidden health risks.

Let’s take a closer look at the potential connection between scented candles, cancer, and dementia.


A study co-authored by Dr. Asit Kumar Mishra, Ph.D., and Dr. Marie Coggins, Ph.D., has shed light on the dark side of scented candles.

The research indicates that these seemingly harmless items can significantly degrade indoor air quality, releasing a cocktail of pollutants and toxic gases into our homes.

Among these are carbon monoxide, sulfur dioxide, formaldehyde, and nitrogen oxides—all of which have been linked to serious health issues.


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The use of scented candles, especially with synthetic fragrances and dyes, can pose health risks. Image source: Leeloo The First/Pexels.


When we light scented candles, especially those with synthetic fragrances and dyes, we're not just setting the mood; we're potentially filling our living spaces with particulate matter.

These tiny particles can trigger sneezing, coughing, respiratory symptoms, and eye irritation.

For individuals with asthma or other respiratory conditions, the effects can be even more severe.

The holiday season exacerbates these risks as we tend to burn candles with windows closed, trapping pollutants inside.

This is particularly concerning in small, poorly ventilated spaces like bathrooms.


The long-term exposure to the chemicals released by scented candles has been linked to an increased risk of cancers and heart disease.

But even short-term exposure isn't without consequence.

Studies have shown that smoke from burning candles can lead to temporary dementia-like symptoms and cognitive decline.

Dr. Kunal Sood, MD, highlights the dangers of synthetic fragrances and dyes found in some scented candles, which can release harmful chemicals when burned.

Phthalates, for example, are endocrine disruptors associated with ADHD, asthma, and even breast cancer.

Additionally, these candles can cause allergic reactions, including headaches and respiratory distress.

Many consumers turn to “natural” candles as a safer alternative, but these too can pose risks.

Natural chemicals released from these candles can react with ozone in the air, creating harmful byproducts.

The lack of ingredient transparency from manufacturers further complicates the issue, making it difficult for consumers to make informed decisions about the candles they use in their homes.


Despite these risks, scented candles remain a beloved part of holiday traditions. So, how can we enjoy them without compromising our health?

1. Ventilation is Key
Open windows while burning candles to improve air circulation and prevent the buildup of chemicals indoors.

2. Choose the Right Space
Burn scented candles in larger rooms, such as living rooms or kitchens, where there's more air volume and possibly better ventilation systems like exhaust fans.

3. Outdoor Snuffing
When extinguishing candles, do so outdoors if possible to avoid inhaling the smoke, which contains the highest concentration of toxic chemicals.

4. Lid It
If you can't take your candles outside, snuff them by replacing the lid to minimize smoke.

5. Air Purifiers
Consider using an air purifier while burning candles and for some time afterward. Look for models that specifically target formaldehyde and other VOCs.

As we age, it's crucial to be mindful of environmental factors that can affect our health.

While scented candles can evoke cherished memories and create a festive ambiance, it's important to balance enjoyment with safety.

By following the tips above, you can reduce the risks associated with scented candles and protect your well-being.
Key Takeaways
  • Scented candles can release harmful pollutants and toxic gases such as carbon monoxide, sulfur dioxide, formaldehyde, and nitrogen oxides into indoor air.
  • The use of scented candles, especially with synthetic fragrances and dyes, can pose health risks, including respiratory issues, cognitive decline, allergic reactions, and potential links to cancer and heart disease.
  • Experts recommend lighting scented candles with windows open, in larger rooms, snuffing them out outdoors, closing lids after use, and using air purifiers to mitigate risks.
  • Manufacturers and brands are typically not required to list ingredients in scented candles, making it difficult for consumers to know what substances they may be inhaling.
Have you experienced any adverse effects from scented candles? Do you have any additional tips for safe use? Share your thoughts in the comments below.
 

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