Candles: Health Benefits, Risks, and Safety Tips (2024)

Candles are popular for relaxation, mood, ambiance, and decoration. There’s a lot of debate about whether candles are good or bad for your health. Here’s what the research says.

How Scents Affect Your Body and Mood

Mood and scent are closely linked. This connection happens because odor molecules in fragrance bind to proteins along your nasal passage and create electrical signals. These signals can interact with a part of your brain called the limbic brain and affect your emotions, thoughts, and memory.

Molecules are also small enough to cross the blood-brain barrier and interact with your nervous system. Some scents can help lower blood pressure and heart rate and change brain activity.

Candles Promote Relaxation

You might turn to candles after a long day or when you’re feeling stressed. Burning a candle can help lower stress and promote relaxation. These benefits come more from the scent than the candle itself.

Lots of candles contain essential oils. These are natural compounds from plants that have medicinal benefits. Some cultures have used essential oils for physical, mental, and spiritual healing. Today, they are often used for relaxation and stress management.

Some essential oils are known to promote relaxation and sleep and lower anxiety. These include:

Are Candles Bad for You?

One of the concerns is that burning candles releases chemicals into the air that can make you sick. These concerns are often linked to paraffin wax and synthetic fragrance chemicals because they come from petrochemicals.

While studies show that burning candles does release toxic chemicals, it’s not clear that these chemicals harm your health.

Candles and Cancer

A 2009 study said that burning paraffin wax releases gases and volatile organic chemicals like toluene and benzene, which are known to cause cancer. Burning candles also releases particulate matter like soot into the air. Breathing in large amounts of soot and volatile organic compounds (VOCs) can damage your DNA and lead to lung problems.

Another study says there’s a possible link between burning candles in poorly ventilated areas and bladder cancer. This study suggests that chemicals called phthalates are the problem.

There are some disagreements with these concerns, though. The first point is that data from some of this research wasn’t published, prompting organizations to question whether it is reliable.

The second disagreement is that particulate matter and VOCs from candles are too small to be a concern. A 2014 study tested candle emissions and found that candles don’t release enough chemicals to be carcinogenic under normal use.

Allergies and Asthma

Chemicals from candles are known allergy and asthma triggers. People with these conditions have inflamed airways. They are more sensitive to chemical irritation, which can lead to flare-ups. Fragrance is a common asthma trigger, but the paraffin wax might also be a problem.

Candles can cause allergy and asthma symptoms such as:

Headaches or Migraines

Smells are a known migraine or headache trigger for many people. About 95% of migraine patients say that sensitivity to smell either triggers or worsens a migraine or headache. This is called osmophobia. Common smells include car exhaust, cigarette smoke, and fragrance.

Scented candles can cause headaches and migraines for some people. Because the problem is often fragrance and not necessarily candles, unscented or natural candles may be okay to use.

Candle Safety

In general, burning candles properly in your home is not likely to be toxic or harmful to your health. Candles are safe even though they might trigger allergies, asthma, or migraines. There are some ways to make candles even safer for your indoor air.

Proper ventilation. The problem with candle emissions is not necessarily the emission levels but poor ventilation. Only burn candles in a well-ventilated room. Open a window while it’s burning, but keep the candle out of the draft.

Burn natural candles. Paraffin candles release different chemicals. Switch to beeswax, soy, or coconut oil-based candles. Check the label to make sure it’s 100% natural wax and not mixed with paraffin.

Avoid scented candles. If fragrance irritates you, go for unscented, natural wax candles. If you enjoy a scent, choose candles with natural essential oils instead of fragrance chemical oils.

Blow it out. Unattended candles are a common cause of household fires. Never leave a candle unattended. Make sure to blow it out before you leave the room or fall asleep.

Bottom Line

Candles can add a lovely scent and ambiance that helps you relax after a stressful day. Candles are safe, but if you think you’re allergic, stop using them and talk to your doctor about your health.

As a seasoned enthusiast with a deep understanding of aromatherapy, relaxation techniques, and the potential health implications of candle usage, I bring to you a wealth of knowledge to shed light on the intricate relationship between candles and well-being.

The article delves into the multifaceted aspects of candles, exploring their role in relaxation, mood enhancement, ambiance, and decoration. Let's break down the key concepts discussed in the article and examine the evidence supporting these claims:

  1. Mood and Scent Connection:

    • Odor molecules in fragrances bind to proteins along the nasal passage, creating electrical signals.
    • These signals interact with the limbic brain, influencing emotions, thoughts, and memory.
    • Some scents can cross the blood-brain barrier, affecting the nervous system and physiological responses.
  2. Candles Promote Relaxation:

    • Burning candles, especially those containing essential oils, can lower stress and induce relaxation.
    • Essential oils, derived from plants, have historical uses in physical, mental, and spiritual healing.
  3. Essential Oils for Relaxation:

    • Lavender, Valerian, Jasmine, Rose, Ylang-ylang, Chamomile, and Sandalwood are essential oils known for promoting relaxation and sleep, and lowering anxiety.
  4. Concerns about Candles:

    • Burning candles may release toxic chemicals into the air, particularly associated with paraffin wax and synthetic fragrances.
  5. Candles and Cancer:

    • Studies suggest a link between burning paraffin wax and the release of cancer-causing substances like toluene and benzene.
    • Some disagreements exist, questioning the reliability of data and arguing that emitted chemicals might not be carcinogenic under normal use.
  6. Allergies and Asthma:

    • Chemicals from candles, including fragrance and paraffin wax, can trigger allergies and asthma symptoms.
    • Common symptoms include a runny nose, watery eyes, sneezing, chest tightness, and headaches.
  7. Headaches and Migraines:

    • Scented candles, due to their fragrance, can trigger headaches and migraines in sensitive individuals.
    • Unscented or natural candles may be a suitable alternative for those prone to such sensitivities.
  8. Candle Safety:

    • Proper ventilation is crucial to minimize potential health risks associated with candle emissions.
    • Choosing natural wax candles (beeswax, soy, or coconut oil-based) over paraffin-based ones is recommended.
    • Opting for unscented or naturally scented candles can mitigate irritation for those sensitive to fragrances.
    • Never leave candles unattended to prevent household fires.
  9. Bottom Line:

    • Candles are generally considered safe when used properly, but individuals with allergies or sensitivities should exercise caution.
    • Natural wax candles and proper ventilation are key to ensuring a safer candle-burning experience.

In conclusion, while candles can enhance your environment and contribute to relaxation, it's essential to be mindful of potential health considerations and adopt safe practices for an optimal and enjoyable experience.

Candles: Health Benefits, Risks, and Safety Tips (2024)
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