
Incense is a smoke-emitting substance that has been burned for millennia for hygienic, spiritual, and therapeutic purposes. However, recent research has revealed potential health drawbacks, with studies suggesting that incense smoke can trigger chronic inflammation and contains particulate matter that may be carcinogenic. While the precise health risks are still being investigated, it is recommended that incense be burned in a well-ventilated area to minimise potential negative health outcomes.
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What You'll Learn
- Incense smoke contains particulate matter that can be inhaled and may have negative health outcomes
- Burning incense may cause issues with brain health in older adults
- Burning incense has been linked to respiratory issues
- Incense smoke has been associated with an increased risk of heart disease
- Incense smoke contains volatile organic compounds, such as benzene, toluene, and xylenes

Incense smoke contains particulate matter that can be inhaled and may have negative health outcomes
Incense has been burned for thousands of years for a variety of reasons, from hygienic and spiritual purposes to therapeutic benefits in traditional medicine systems like Ayurveda and Traditional Chinese Medicine (TCM). However, recent research has revealed potential health drawbacks associated with incense burning.
Incense smoke contains particulate matter, which can be easily inhaled and may have negative health outcomes. A 2021 study confirmed that some of the particulate matter in incense smoke is carcinogenic, meaning it could cause cancer. There is also an association between higher cancer risk and incense use, although it is important to note that the studies showing this correlation often use animal subjects, and further research on humans is necessary.
In addition to the potential carcinogenic effects, incense smoke has been linked to an increased risk of asthma, heart disease, and chronic inflammation in the body. The smoke released during incense burning contains not only particulate matter but also gas products and organic compounds, including volatile organic compounds (VOCs) such as benzene, toluene, and xylenes. These VOCs can contribute to overall inflammation and have been linked to respiratory issues.
To minimise the potential health risks associated with incense burning, it is recommended to burn incense in a well-ventilated area and to avoid inhaling the smoke directly. Limiting the burning time to a few hours a day and avoiding burning incense regularly in confined spaces can also help reduce exposure to potential toxins. While the fragrance of incense can be enjoyed from a distance, it is important to be cautious of the potential dangers of inhaling the smoke directly.
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Burning incense may cause issues with brain health in older adults
Burning incense has been a part of various religious, spiritual, and cultural practices for thousands of years. The aroma of incense is known to create a calming ambiance, relieve stress, and promote relaxation. However, recent studies have also revealed certain health drawbacks. Incense smoke contains particulate matter (PM), gas products, and many organic compounds that can be easily inhaled and may lead to adverse health effects.
A 2020 study found a link between burning incense and brain health issues in community adults older than 65 years. The study suggested that long-term exposure to incense smoke, a form of air pollution, could result in smaller brain and prefrontal cortex volumes, leading to potential cognitive performance delays and decreased brain connectivity. While the precise mechanisms behind these observations require further investigation, the findings highlight a potential cause for concern.
The impact of incense smoke on brain health may be attributed to the presence of certain chemicals released during burning. Incense smoke has been found to contain polycyclic aromatic hydrocarbons (PAHs), which have been linked to an increased risk of cancer. While the risk is considered small when used in normal amounts, the presence of these chemicals and their potential impact on brain health cannot be overlooked. Additionally, incense smoke has been associated with an increased risk of asthma, heart disease, and chronic inflammation in the body.
To minimize the potential health risks associated with burning incense, it is recommended to burn it in moderation and in well-ventilated areas. Keeping lit and unlit incense out of the reach of children and pets, and avoiding direct inhalation of the smoke are also important safety precautions. While the therapeutic benefits of incense are recognized, it is crucial to be mindful of the potential drawbacks and take the necessary precautions to ensure a healthy and balanced approach to its usage.
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Burning incense has been linked to respiratory issues
Burning incense has been a part of various religious, spiritual, and cultural practices for thousands of years. The aroma of incense is known to create a calming ambiance, relieve stress, and promote relaxation. However, recent research has revealed some health drawbacks.
Inhaling incense smoke can cause respiratory system dysfunction and has been associated with elevated cord blood IgE levels and allergic contact dermatitis. Additionally, incense smoke is a risk factor for neoplasm, and extracts of particulate matter from incense smoke have been found to be mutagenic in certain tests. The smoke released from burning incense can also cause eye irritation, as reported by a worshipper in a temple in Taipei, Taiwan.
To minimize the potential health risks associated with burning incense, it is recommended to burn incense in a well-ventilated area and to avoid inhaling the smoke directly. It is also advisable to limit the burning of incense to a few hours a day and not to burn it regularly in confined spaces. Keeping both lit and unlit incense out of the reach of small children and pets is essential for safety.
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Incense smoke has been associated with an increased risk of heart disease
Burning incense has been a part of various religious, spiritual, and cultural practices for thousands of years. The aroma of incense is often soothing and calming, relieving stress and promoting relaxation. However, recent studies have suggested that incense smoke may have negative health effects and could be associated with an increased risk of heart disease.
While the exact mechanisms are not yet fully understood, incense smoke contains particulate matter (PM) that can be easily inhaled and may lead to adverse health outcomes. These particles are created by the natural and unnatural ingredients in incense, which can include wood, resins, powders, and added fragrances. The smoke released during incense burning can contain higher levels of particulate matter than cigarette smoke, with an average of 45 mg/g compared to 10 mg/g for cigarettes.
The particulate matter in incense smoke has been linked to chronic inflammation in the body. This inflammation is caused by the body's processing of particulate matter into metabolites, which also leads to oxidative stress. In addition to the potential risks of cancer and asthma, studies have found an association between incense smoke and an increased risk of heart disease. The smoke may affect heart tissues, deposit harmful substances in the body, and contribute to overall inflammation.
It is important to note that the studies on the health effects of incense burning have limitations. Many of the studies have been conducted on animals, and further research is needed to confirm the impact on humans directly. Additionally, different types of incense with varying ingredients are used in these studies, so the results may not apply to all kinds of incense. While the correlation between incense use and heart disease risk has been observed, it does not prove causation.
To minimize potential health risks, it is recommended to burn incense in moderation and in well-ventilated areas. Keeping both lit and unlit incense out of the reach of children and pets is also essential. For those with respiratory issues, it is advisable to avoid burning incense and to consult credible scientific resources for information on cancer treatment and other health concerns.
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Incense smoke contains volatile organic compounds, such as benzene, toluene, and xylenes
Burning incense has been a part of various religious, spiritual, and cultural practices for thousands of years. The aroma of incense is often soothing and calming, relieving stress and promoting relaxation. However, in recent times, there have been concerns about the health implications of burning incense. Some claim that inhaling incense smoke can be harmful and may even cause cancer.
Indeed, incense smoke contains particulate matter (PM), gas products, and organic compounds. On average, incense burning produces more particulates than cigarettes (45 mg/g burned compared to 10 mg/g burned). The gas products from burning incense include CO, CO2, NO2, and SO2. Notably, incense smoke also contains volatile organic compounds (VOCs) such as benzene, toluene, and xylenes, which can have negative health effects.
Benzene, toluene, and xylenes are all VOCs that can be harmful to human health. Benzene, a known carcinogen, has been linked to an increased risk of certain cancers, particularly when exposed to high levels over a long period. Toluene and xylenes are also associated with adverse health effects, including respiratory issues and central nervous system depression.
The release of these compounds during incense burning raises concerns about the potential impact on the health of those who inhale the smoke. However, it is important to note that the mere presence of these compounds does not automatically indicate a health risk. The level of exposure and the duration of inhalation likely play a significant role in determining any adverse effects.
To minimize potential health risks, it is recommended to burn incense in a well-ventilated area and avoid inhaling the smoke directly. Limiting the burning time to a few hours a day and avoiding regular use in confined spaces can also help reduce exposure to these volatile organic compounds.
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Frequently asked questions
Burning incense has been a part of various religious, spiritual, and cultural practices for thousands of years. However, recent research suggests that incense contains certain health risks. The inhalation of incense smoke can cause respiratory system dysfunction and has been associated with neoplasm and allergic contact dermatitis. Incense smoke also contains particulate matter, which can be carcinogenic and cause chronic inflammation in the body.
Burning incense indoors increases the levels of chemicals called polycyclic aromatic hydrocarbons (PAHs), which have been linked to cancer. It is also important to note that incense smoke can cause eye irritation and contribute to overall air pollution.
Some Japanese incense companies offer 'smokeless' or reduced-smoke incense varieties, which are considered safer. Additionally, natural incense sticks made from 100% plant-based ingredients, such as joss powder, makko powder, and cedarwood powder, are available as a potentially healthier alternative to traditional incense.











































