
Burning incense is a popular practice worldwide, with many different kinds of incense containing different ingredients. While incense is used in many cultures and religions, it can also pose health risks for those with allergies and asthma. Incense smoke contains particulate matter, gases such as carbon monoxide, nitrogen dioxide, and sulfur dioxide, and volatile organic compounds such as benzene, aldehydes, and polycyclic aromatic hydrocarbons. Studies have shown that incense smoke can induce oxidative stress, disrupt bronchial epithelial barrier integrity, and induce airway hyperresponsiveness. For those with asthma, incense smoke can exacerbate their condition and cause coughing fits and shortness of breath.
| Characteristics | Values |
|---|---|
| Effect of incense on asthma | Burning incense can cause an asthma flare-up and coughing fits. |
| Incense composition | Incense contains particulate matter, gases such as carbon monoxide, nitrogen dioxide, and sulfur dioxide, and volatile organic compounds such as benzene, aldehydes, and polycyclic aromatic hydrocarbons. |
| Health risks | Health problems from burning incense include headaches, respiratory dysfunction, dermatological sensitivity, and allergic reactions. |
| Incense alternatives | Smoke-free alternatives to incense include loose grain incense, which can be mixed with water and heated over a tealight burner, or placing frankincense crystals or other resins in a pie tin with water on a heat source. |
| Incense and allergies | Commercially available incense brands often contain synthetics that can trigger allergic reactions. |
| Incense and air pollution | Incense burning generates larger quantities of particulate matter compared to cigarette smoking, and the smoke can remain in the air for hours, contributing to indoor air pollution. |
| Incense and cognitive function | Burning incense has been associated with issues in cognitive function and brain connectivity in older adults. |
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What You'll Learn
- Incense smoke can induce oxidative stress, causing airway hyperresponsiveness
- Asthma patients may experience coughing fits and shortness of breath
- Burning incense increases the risk of wheezing and impaired lung function
- Asthma patients should consider smoke-free alternatives to traditional incense
- Particulate matter in incense smoke can be easily inhaled and cause negative health outcomes

Incense smoke can induce oxidative stress, causing airway hyperresponsiveness
Incense burning is a popular practice worldwide, but it can have adverse health effects. The smoke released from burning incense contains particulate matter, volatile organic compounds, gas products, and other organic compounds, which can cause air pollution and respiratory issues.
Several studies have investigated the impact of incense smoke on human health, and one specific area of interest is its effect on asthma. Asthma is a respiratory condition characterised by airway hyperresponsiveness, where the airways become easily irritated and inflamed, leading to coughing, wheezing, and difficulty breathing.
Recent clinical studies have suggested a potential link between incense smoke inhalation and impaired lung function, including asthma. However, there is limited experimental evidence directly connecting incense smoke exposure to airway hyperresponsiveness and bronchial epithelial barrier function.
To address this gap in knowledge, Yamamoto et al. (2021) conducted a study using mouse models to evaluate the effects of incense smoke exposure on airway hyperresponsiveness, inflammation, and cell apoptosis in the lungs. The results indicated that incense smoke-induced oxidative stress disrupted tight junctions and bronchial epithelial barrier integrity, leading to airway hyperresponsiveness in mouse lungs. This disruption in the bronchial epithelial barrier can allow greater penetration of inhaled allergens and noxious particles, which may contribute to the development and exacerbation of asthma.
In conclusion, the available evidence suggests that incense smoke can induce oxidative stress, causing airway hyperresponsiveness and potentially impacting asthma. Therefore, individuals with asthma or other respiratory conditions should exercise caution when exposed to incense smoke and consider using smoke-free alternatives or natural, fragrance-free incense options to reduce potential negative effects on their respiratory health.
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Asthma patients may experience coughing fits and shortness of breath
Asthmatics are particularly vulnerable to the negative health effects of incense burning. The smoke released from burning incense contains particulate matter that can be easily inhaled and cause adverse health outcomes. The particulate matter generated from incense is 45 mg per gram burned, significantly higher than the 10 mg generated from cigarettes.
The smoke from burning incense can exacerbate asthma, causing coughing fits and shortness of breath. In one case, an 87-year-old woman with a history of asthma and COPD presented with unexplained shortness of breath. A detailed history revealed that she burned incense daily, and doctors recommended that she stop. However, the patient refused as burning incense allowed her to pay homage and veneration to her ancestors. Instead, she was advised to use electric incense devices, which improved her symptoms.
In another example, the Catholic Diocese in Allentown, Pennsylvania, switched to a hypoallergenic incense during Mass after reports that the scent of frankincense caused coughing fits and forced those with respiratory issues to leave the church to seek fresh air. This hypoallergenic incense is available in flower, forest, and powder scents, with powder being the lightest and least likely to trigger allergies or asthma.
For those with asthma, there are smoke-free alternatives to commercial incense. One option is to use loose grain incense, which can be mixed with water, placed in a small bowl, and heated over a tealight burner to release the scent without the smoke. Another option is to place frankincense crystals or other resins in a pie tin with water and heat it over a heat source. Burning dried plant material like smudge sticks (e.g., sage or sweetgrass) may also be better tolerated by asthmatics than commercial incense.
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Burning incense increases the risk of wheezing and impaired lung function
Burning incense is a common practice in many cultures and religions. However, it can have negative health effects, especially for those with allergies and asthma. Incense smoke contains particulate matter, gases such as carbon monoxide, nitrogen dioxide, and sulfur dioxide, and volatile organic compounds like benzene and formaldehyde. This composition can cause indoor air pollution, leading to potential health risks.
Several studies have linked incense burning to adverse health outcomes. Lin et al. found that incense smoke exposure during pregnancy is a risk factor for elevated serum immunoglobulin E (IgE) in human umbilical cord blood. Additionally, incense smoke has been associated with oxidative stress, which can disrupt bronchial epithelial barrier integrity and induce airway hyperresponsiveness, as seen in mouse studies.
The impact of incense burning on asthma is a significant concern. Recent studies have reported that indoor exposure to incense smoke increases the risk of wheezing and is linked to impaired lung function in adolescents. This correlation is not limited to adolescents, as an 87-year-old woman with a history of asthma and COPD experienced unexplained shortness of breath, which was attributed to her daily incense burning habit.
The particulate matter in incense smoke can be easily inhaled and may have negative consequences for respiratory health. This is particularly relevant for individuals with asthma, as the smoke can exacerbate their condition, leading to coughing fits and difficulty breathing. In some cases, people with asthma may need to leave the room or seek fresh air due to the impact of incense smoke.
While the correlation between incense burning and adverse health effects has been established, it is important to note that the specific causal mechanisms are still being investigated. Additionally, the variety of incense types and ingredients used in different studies may limit the applicability of the results to all types of incense. Nevertheless, the available evidence suggests that burning incense increases the risk of wheezing and impaired lung function, especially for individuals with asthma.
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Asthma patients should consider smoke-free alternatives to traditional incense
Asthmatics are often advised to avoid commercial incense due to its negative impact on their breathing. The smoke released by burning incense can contain particulate matter that is easily inhaled and may have adverse health effects. This includes an increased risk of heart disease and cognitive issues.
However, there are several smoke-free alternatives to traditional incense that asthmatics can consider:
- Oil burners: Oil burners use essential oils mixed with water and a heat source to release scents without burning or smoke.
- Baking: Baking scented foods, such as cinnamon apples, can fill your home with pleasant aromas.
- Sachets: Aromatic sachets, such as those containing incense body powder, can be placed in drawers or cupboards to impart a fragrance without burning.
- Natural room sprays: Room sprays made with essential oils and water can be used to freshen up spaces without the need for smoke-based products.
- Essential oil diffusers: Diffusers can infuse living spaces with pleasant aromas without the smoke associated with burning incense.
- Herbal teas: Heating loose-grain incense with water over a tealight burner can produce a scent without smoke.
- Resins: Placing frankincense crystals or other resins in water and then on a heat source can create a fragrance without burning.
- Sound therapy: While not an aromatic alternative, sound therapy, such as Tibetan singing bowls, can create a calming environment similar to that produced by incense.
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Particulate matter in incense smoke can be easily inhaled and cause negative health outcomes
Burning incense is a popular practice worldwide, used in religious and cultural contexts. However, the smoke released from burning incense contains particulate matter that can be easily inhaled and may lead to adverse health outcomes.
Incense smoke (IS) contains particulate matter of varying sizes, including fine particles of 2.5 μm diameter or less. These fine particles can remain suspended in the air for extended periods and are easily inhaled, potentially causing respiratory issues. In addition to particulate matter, incense smoke contains gases such as carbon monoxide, nitrogen dioxide, and sulfur dioxide, as well as volatile organic compounds like benzene, aldehydes, and polycyclic aromatic hydrocarbons. The concentration of particulate matter generated per gram burned is higher in incense than in cigarettes, at 45 mg and 10 mg, respectively.
The inhalation of incense smoke has been linked to respiratory problems, particularly for individuals with allergies and asthma. Studies have reported that indoor exposure to incense smoke increases the risk of wheezing and asthma and is associated with impaired lung function in adolescents. Incense smoke can induce oxidative stress, disrupt bronchial epithelial barrier integrity, and lead to airway hyperresponsiveness, as seen in mouse studies. These effects may also translate to humans, as suggested by a 2020 study that found indoor incense burning to be associated with cognitive function issues and reduced brain connectivity in older adults.
The particulate matter and gaseous compounds in incense smoke can have detrimental effects on respiratory health, especially for those with pre-existing conditions like asthma. The smoke can exacerbate asthma symptoms, leading to coughing fits and difficulty breathing. In some cases, individuals with asthma may need to seek fresh air to escape the effects of incense smoke. While the specific mechanisms require further investigation, the available evidence suggests that burning incense can negatively impact respiratory health, particularly for susceptible individuals.
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Frequently asked questions
Burning incense can pose health risks for those with asthma. The smoke released from burning incense contains particulate matter that can be inhaled and cause negative health outcomes. It can cause coughing fits and force asthma patients out of the room to seek fresh air.
The health problems from burning incense for people with asthma include respiratory dysfunction, coughing fits, and shortness of breath.
Some alternatives to burning incense include using smoke-free incense alternatives, such as loose grain incense mixed with water and heated over a tealight burner, or placing frankincense crystals and water in a pie tin on a heat source.











































