
Incense is a substance that is burned since ancient times to produce a fragrant scent. It is commonly used in religious ceremonies and for aromatherapy. Despite its long history, the information on its health effects is mixed. While some studies indicate possible antidepressant and anti-inflammatory effects, others have found associations between incense burning and negative health effects such as cancer, asthma, and heart disease. Frankincense, a type of incense resin derived from the Boswellia tree, has been found to possess antibacterial properties and has been used in traditional medicine to treat various ailments.
| Characteristics | Values |
|---|---|
| Types of incense with antibacterial properties | Frankincense, myrrh, Boswellia serrata, and Nigella sativa |
| Health benefits | May improve oral hygiene, prevent gum disease, and reduce osteoarthritis pain |
| Health risks | May trigger chronic inflammation, cause issues with brain health in older adults, and increase the risk of cancer, asthma, and heart disease |
| History | Used in ancient Egypt, Babylon, and Greece for religious rituals and medical purposes |
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What You'll Learn
- Frankincense, made from the resin of the Boswellia tree, has antibacterial properties
- Incense smoke contains pollutants like carbon monoxide and nitric oxide
- Incense smoke may trigger chronic inflammation and has been linked to higher cancer risk
- Burning incense has been associated with changes in oral microbiota composition
- Incense has been used since ancient times for religious rituals and meditation

Frankincense, made from the resin of the Boswellia tree, has antibacterial properties
Frankincense, also known as olibanum, is made from the resin of the Boswellia tree. This tree typically grows in the dry, mountainous regions of India, Africa, and the Middle East. Frankincense has a woody, spicy smell and can be inhaled, absorbed through the skin, or taken as a supplement.
Frankincense has a long history in traditional medicine. It has been used since 2800 BCE for the treatment of skin sores, wounds, teeth, inflammation, and urinary tract diseases. It has also been used in perfumes and for the preparation of mummification balms and unguents.
Frankincense is also known for its antibacterial properties. The boswellic acids it contains have strong antibacterial properties, which may help prevent and treat oral infections. For example, one test-tube study found that frankincense extract was effective against Aggregatibacter actinomycetemcomitans, which causes aggressive gum disease. Another small study found that participants who chewed gum containing frankincense for 5 hours had reduced numbers of microbes in their saliva samples.
In addition to its antibacterial properties, frankincense has also been found to have anti-inflammatory effects. A 2014 study found that oral and topical boswellic acid reduced cartilage loss and joint lining inflammation in osteoarthritis in mice. A subsequent study in humans found that participants who took a Boswellia extract supplement twice daily for 120 days experienced reduced inflammation, joint pain, and stiffness in mild to moderate knee osteoarthritis.
While frankincense has been found to have potential health benefits, it is important to note that it is typically burned as incense, which can produce smoke containing fine and ultrafine airborne particulates and gaseous pollutants such as carbon monoxide (CO), nitric oxide (NO), and volatile organic compounds (VOCs). These pollutants may have negative health effects, including an increased risk of cardiovascular and lung cancer mortality. As such, it is important to use incense safely and minimize any fire hazards.
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Incense smoke contains pollutants like carbon monoxide and nitric oxide
Incense has been used for centuries in religious ceremonies, for aromatizing, and for other purposes. Burning incense emits smoke, which contains particulate matter, gases, and organic compounds.
Incense smoke contains pollutants like carbon monoxide, a colourless, odourless, and poisonous gas that is generally formed during the incomplete combustion of organic substances. Carbon monoxide is harmful because it can cause inflammation in lung cells, signalling asthma and other respiratory problems. Exposure to carbon monoxide can also affect heart tissues, deposit harmful substances in the body, and contribute to overall inflammation. It may also cause adverse reactions in people with existing heart conditions.
In addition to carbon monoxide, incense smoke also contains nitric oxide. Nitric oxide, along with other pollutants, can be inhaled and travel deep into the respiratory tract, including the lungs, and even enter the bloodstream. These pollutants have been linked to asthma, lung inflammation, and cancer. A 2021 study confirmed that some of the particulate matter in incense smoke was carcinogenic.
The practice of burning incense has been linked to increased risks of cardiovascular and lung cancer mortality. The smoke contains high concentrations of fine and ultrafine airborne particulates and gaseous pollutants, which can have negative health outcomes. While incense burning has been associated with certain benefits, such as improving oral hygiene and having potential antidepressant effects, it is important to be aware of the potential health risks associated with the pollutants present in incense smoke.
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Incense smoke may trigger chronic inflammation and has been linked to higher cancer risk
Incense, derived from the Latin word "to burn", has been used since ancient times in religious rituals and for aromatherapy. It is typically made from aromatic plant-based materials, such as resins, barks, seeds, roots, and flowers, and a combustible binding material like charcoal or wood powders. While incense has been associated with various health benefits, recent studies have also linked incense smoke to negative health outcomes, including chronic inflammation and an increased risk of cancer.
Incense smoke contains high concentrations of fine and ultrafine airborne particles and gaseous pollutants, including carbon monoxide (CO), sulfur dioxide (SO2), nitric oxide (NO), and volatile organic compounds (VOCs). These pollutants are similar to those found in tobacco smoke and have been linked to an increased risk of respiratory problems, cardiovascular diseases, and cancer. The International Agency for Research on Cancer (IARC), a specialized cancer agency of the World Health Organization (WHO), has stated that exposure to particulate matter (PM) causes lung cancer and has been classified as carcinogenic to humans since 2013.
The toxicities of incense smoke come directly from its harmful constituents and deposition capacity in the body. Reactive oxygen species-driven oxidative stress and associated inflammation seem to be plausible underlying mechanisms for the adverse effects observed. For instance, a population-based study of middle-aged and older Singaporeans found that current incense users had a 23% higher risk of developing end-stage renal disease, with the risk further increasing for daily users burning incense for more than 20 years. Another study reported that incense burning was associated with increased hospital admissions, morbidity, and mortality due to respiratory and cardiovascular issues.
While the health effects of incense burning are mixed, it is generally recommended to reduce or limit exposure to incense smoke to minimize potential risks. Opening windows during or after burning incense can help reduce exposure, and alternatives to incense are also available for those concerned about the potential health risks. However, it is important to note that the largest study to date, tracking the health of 61,000 people in Singapore, found that incense use is generally safe in normal amounts, and the risk of cancer is very small, if at all.
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Burning incense has been associated with changes in oral microbiota composition
Burning incense is a common practice worldwide, with a long history in many cultures and religions. It is used in religious ceremonies and to aromatize homes and public spaces. However, the smoke produced by burning incense contains high concentrations of fine and ultrafine airborne particulates and gaseous pollutants, including carbon monoxide, nitric oxide, and volatile organic compounds. These pollutants are similar to those found in tobacco smoke, and exposure to them can have similar effects on the oral environment and the function and composition of saliva.
Several studies have investigated the impact of incense burning on oral microbiota composition. One study, involving 303 Emirati adults, examined the link between incense use and compositional changes in oral microbiota. The oral microbiota was assessed by amplifying the bacterial 16S rRNA gene from mouthwash samples, and the frequency of incense use was determined through questionnaires. The results showed that exposure to incense burning was associated with higher microbial diversity and overall microbial compositional changes.
Another study, the UAE Healthy Future Study-Pilot (UAEHFS-pilot), involved 303 participants from the United Arab Emirates. The oral microbiome was measured from mouthwash samples by 16S rRNA gene sequencing, and incense use frequency was assessed through questionnaires. This study also found that exposure to incense burning was associated with higher microbial diversity and overall compositional changes in the oral microbiota.
The findings from these studies suggest that burning incense may have a significant impact on oral health. However, it is important to note that the health effects of incense burning are complex and not yet fully understood. While some studies suggest potential benefits, such as improved oral hygiene and reduced gum disease, other studies have linked incense burning to negative health outcomes, including increased risk of cardiovascular disease and lung cancer mortality. Therefore, further research is needed to fully understand the effects of incense burning on human health.
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Incense has been used since ancient times for religious rituals and meditation
Incense is a substance that is burned to produce a fragrant scent. The word "incense" is derived from the Latin word "incendere", meaning "to burn". Incense has been used since ancient times for religious rituals and meditation.
The use of incense can be traced back to ancient civilizations such as Egypt, Babylon, and Greece. In ancient Egypt, incense was prominent in religious rituals and funerary practices. It was believed to ward off evil spirits and please the gods with its pleasant aroma. Egyptian priests used incense in fumigation ceremonies and tombs, and traces of fragrant resins such as frankincense and myrrh have been found in Egyptian graves.
Incense was also used in ancient China, where it was made from blends of herbs and plants such as cinnamon and sandalwood. The earliest documented use of incense comes from ancient China, where it was employed in formalized ceremonial rites. Incense usage reached its peak during the Song dynasty, with numerous buildings erected specifically for incense ceremonies.
In India and other parts of southern Asia, the use of incense dates back to as early as 3300 BC. Incense burning has been a fundamental part of Hinduism and Buddhism, with Hindus using incense for ritual and domestic offerings and Buddhists burning incense at festivals, initiations, and daily rites.
Incense has also been used in Japan since the 6th century, brought by Korean Buddhist monks who used the mystical aromas in their purification rites. In the 14th century, Samurai warriors would perfume their helmets and armor with incense, believing it brought them invincibility and as a noble gesture to their potential conquerors.
The practice of burning incense has evolved over the centuries, with different cultures adopting it for various purposes. Incense is commonly used for religious ceremonies, aromatherapy, meditation, and aromatizing homes and public spaces. It is believed to have potential health benefits, such as improving oral hygiene, reducing osteoarthritis pain, and possibly having antidepressant and anti-inflammatory effects. However, there are also concerns about the negative health impacts of incense burning, including the production of indoor air pollutants and an increased risk of cardiovascular and lung cancer mortality.
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Frequently asked questions
Frankincense is a resin made from the Boswellia tree, which grows in the dry, mountainous regions of India, Africa, and the Middle East. It has been used since 2800 BCE for medicine, perfume, and spiritual purposes.
Frankincense has been associated with various health benefits, including improved oral hygiene, reduced osteoarthritis pain, and improved mobility. It is also said to have antibacterial and anti-inflammatory properties.
While frankincense has been used for centuries, recent research suggests that it may contain health risks. Studies have found correlations between incense burning and negative health effects, such as cancer, asthma, and heart disease. However, it is important to note that these studies have primarily been conducted on animals, and more research on humans is necessary.
Frankincense is available for purchase from various online and physical stores specializing in incense, essential oils, or natural products.










































