Sleeping with your mouth open may seem normal to many people. Especially if it is not accompanied by a clear feeling of the problem. However, breathing through the mouth during sleep is not always just a passing habit. In some cases, it may be a sign of an underlying health problem, and over time it can affect oral health, sleep quality, and general health.
Although mouth breathing is common during sleep, the persistence of this problem may lead to a range of undesirable effects, ranging from dry mouth and bad breath, to teeth and gum problems and sleep disturbances.
What are the causes of mouth breathing?
Mouth breathing, especially during sleep, may be a cause for attention. Because it often indicates an underlying health problem. Nasal congestion and obstructive sleep apnea are among its most prominent causes.
Nasal congestion may occur as a result of allergies or sinus infections, or due to structural problems, such as a deviated nasal septum. When an obstruction occurs, the body automatically switches to mouth breathing to help maintain air flow.
Sleep apnea, specifically the obstructive type, can also lead to breathing through the mouth. The airway becomes blocked during sleep, which forces the body to try to get air through the mouth.
How does mouth breathing affect dental health?
Mouth breathing can greatly impact dental health; It often leads to dry mouth due to decreased saliva secretion.
Saliva plays a vital role in maintaining oral health, as it helps neutralize harmful acids, remove food residue, and fight bacteria. As the amount of saliva decreases, the risk of tooth decay and gum disease increases.
The effects are not limited to that; Mouth breathing can cause bad breath and may increase the possibility of oral infections.
Over time, mouth breathing may also lead to a change in the alignment of the teeth and a modification of the jaw structure, which in some cases may require orthodontic treatment.
Oxygen absorption and general health
Mouth breathing may reduce the amount of oxygen the body receives, which may negatively affect overall health.
When we breathe through the nose, the nose purifies, moisturizes and warms the air before it reaches the respiratory system. Mouth breathing bypasses these stages, which may lower oxygen levels in the blood.
This may lead to fatigue, headaches, and difficulty concentrating. In the long term, it may also affect heart health and increase the risk of high blood pressure, which is why breathing through the nose is important for health.
How does mouth breathing affect sleep quality?
Mouth breathing may make it more difficult to get good sleep; It often causes dry throat, which leads to a feeling of discomfort and increases the possibility of frequent awakening during sleep.
Sleep apnea can exacerbate these problems by causing frequent interruptions in breathing and reducing sleep quality, which may make you sleepy during daylight hours.
The effect of poor sleep is not limited to feeling tired; It can even extend to daily life and mental and physical health. Not getting the deep, restful sleep that the body needs may lead to feeling tired and irritable, and may also negatively affect memory and mood.
Therefore, treating mouth breathing and associated problems can help improve sleep quality, and thus achieve better health.
Increased risk of sleep apnea
Chronic mouth breathing is often associated with obstructive sleep apnea (OSA), a condition in which breathing repeatedly stops and starts during sleep.
If sleep apnea is not treated, it is associated with a number of health problems, including:
- High blood pressure.
- Heart disease.
- Stroke.
- Type 2 diabetes.
- Memory problems.
Bad breath
Mouth breathing can be one of the causes of bad breath. Especially in the morning, because dry mouth creates a suitable environment for the growth of odor-causing bacteria.
If you notice that bad breath persists in the morning and does not improve despite brushing your teeth, mouth breathing may be one of the factors causing it.
When should you consult a doctor?
If mouth breathing occurs frequently during sleep, it may be the result of nasal congestion or allergies, and it may also be associated with other problems, such as sleep apnea.
Therefore, it is advisable to evaluate the cause medically; Especially if mouth breathing occurs continuously or is accompanied by other symptoms, with the aim of determining the cause and treating the underlying problem.
Between a cup of coffee, which gives you a boost of activity at the beginning of the day, and a cup of tea, which accompanies moments of calm, the debate does not stop about which is more beneficial to health.
While studies indicate health benefits for both drinks, the benefits vary depending on the organ or function we are looking at, according to the British newspaper The Telegraph.
Bone health...tea excels
New research has revealed that people who regularly drink tea may be less likely to develop osteoporosis than those who drink coffee.
A study that lasted about 10 years and included nearly 10,000 women over the age of 65, and was conducted by Flinders University in Australia, indicated that women who drank tea daily had a slightly higher mineral density in their thigh bones compared to those who were not accustomed to drinking it.
On the other hand, drinking coffee in moderate amounts does not appear to harm bone health, but drinking more than five cups a day has been linked to lower bone density.
Aisling Piggott, a nutritionist and spokeswoman for the British Nutrition Society, explains that consuming large amounts of caffeine may negatively affect bone health, noting that tea usually contains a smaller amount of caffeine than coffee, and it also contains antioxidant plant compounds that may support bone health.
Gut health...coffee is at the forefront
Both tea and coffee contain plant compounds called polyphenols, which experts believe provide multiple benefits to the body.
But coffee contains higher levels of polyphenols than tea.
Tim Spector, a professor of epidemiology and a nutrition specialist, says that these compounds reach the colon, where gut bacteria break them down into active substances that can help reduce inflammation, improve blood sugar control, and maintain healthy blood vessels.
Coffee is also characterized by containing a significant amount of soluble fiber, which helps feed beneficial bacteria in the intestines, as a cup of filter coffee contains about 1.5 grams of fiber.
But coffee may not be the best choice for those who already suffer from digestive problems, because high levels of caffeine may exacerbate some symptoms. In this case, you can resort to decaffeinated coffee, which retains a large portion of the polyphenols and fibers.
Heart health...tea is ahead by a slight margin
Studies indicate that drinking tea and coffee in moderate quantities may be associated with a lower risk of heart disease and strokes, but some of these studies do not rule out the influence of other factors, such as physical activity and diet.
There is strong evidence that the antioxidants and polyphenols found in the two drinks may help protect the heart and blood vessels, with results specifically pointing to the benefits of green tea in reducing some heart disease risk factors, such as blood pressure and lipid levels.
Piggott says that both drinks may support heart health when consumed in moderation, but she notes that the polyphenols in tea may give it a slight advantage in terms of cardiovascular health.
Focus and attention...coffee excels
Coffee usually contains about twice as much caffeine as a cup of tea.
Caffeine is known for its ability to increase alertness and improve attention and concentration, which is why coffee appears to be more effective in enhancing focus in the short term because it contains a greater amount of caffeine.
But excessive consumption may have the opposite effect, as it can lead to anxiety, hyperstimulation, and sleep disturbance, which may ultimately affect concentration and brain functions.
Piggott says coffee gives a greater boost to focus in the short term, but she warns that this boost may be followed by a decrease in activity level.
Brain health...a balance between the two drinks
There doesn't seem to be a clear winner when it comes to brain health, as studies indicate potential benefits for both coffee and tea.
A study conducted by Harvard Medical School, which included data from more than 130,000 people, showed that drinking two to three cups of caffeinated coffee daily was associated with a reduced risk of dementia by between 15 and 20 percent, and similar results appeared among those who drank one to two cups of tea daily.
The results indicated that caffeine may have a protective role in the brain.
A 2025 study that followed more than 204,000 middle-aged people in Britain for nine years found that people who used to drink unsweetened coffee were 34 percent less likely to develop Alzheimer's disease and 37 percent less Parkinson's disease, and their risk of death from neurodegenerative diseases decreased by 47 percent.
Under the slogan “Don’t miss a beat,” the world commemorates the twenty-ninth of September 2026, World Heart Day, amid unprecedented medical warnings about the increase in silent heart attacks.
This year's occasion comes to sound the alarm about the transformation of cardiovascular diseases into a cross-generational threat, which is no longer limited to the elderly, but rather lurks among young people and women due to changing modern lifestyles and daily pressures.
Recent statistics issued by the World Heart Federation indicate that heart diseases are the leading causes of death globally, causing about 20 million deaths annually, representing about 32 percent of the total deaths in the world.
In the midst of these alarming numbers, fundamental differences emerge between men and women in terms of the causes of infection, the nature of symptoms, and the age groups most at risk.
Age map: Young people in the target area
Coronary arteries are no longer safe with young age, as doctors have observed in recent years a worrying jump in the rates of severe heart attacks among young age groups, specifically between the ages of thirty and forty-five.
Experts attribute this rapid transformation to the spread of “modern epidemics” associated with the contemporary lifestyle, most notably obesity and physical inactivity, as continuous sitting for more than ten hours a day behind desks or screens contributes to a sharp increase in the risk of heart failure.
In addition, electronic and traditional smoking play a direct role in causing premature arterial spasm and damage to their cellular lining. These risks multiply when combined with acute psychological stress and chronic anxiety resulting from fast-paced modern work environments, which puts young hearts at an early risk of muscle weakness and arterial infarction.
Gender differences: men and women in the face of disease
The nature of the infection and its causes differ significantly between men and women based on biological and behavioral factors. Historically and behaviorally, men remain the group most vulnerable to infection at an early age compared to women, as a result of the high rates of heavy smoking among them, neglect of periodic examinations, and the accumulation of occupational stress without healthy relief.
As for women, the picture appears different and more complex, as infection rates rise sharply after menopause and menopause as a result of the absence of the natural protection that the hormone estrogen provided to the arteries.
The greatest danger for women lies in the fact that diabetes and smoking raise their risk of heart disease in proportions greater than their effect on men, and the symptoms of a heart attack in them are often silent or misleading, such as temporary shortness of breath, nausea, or pain in the jaw and back, which leads to delaying medical diagnosis and increasing the possibility of death.
Clinical examples: How does the disease attack silently?
There are many clinical manifestations of heart disease, and acute coronary artery disease, or what is known as myocardial infarction, is the most prominent life-threatening example. This disease results from the accumulation of fatty plaques and cholesterol on the inner walls of the arteries, which prevents blood flow and leads to a sudden clot that destroys part of the muscle.
On the other hand, heart failure or heart failure represents another example of a weak muscle's ability to pump blood efficiently to the body's organs, and soft drinks, ultra-processed fast food, and skipping breakfast are indirect environmental triggers of long-term muscle deterioration.
Cardiac arrhythmia also stands out as an additional silent danger represented by an irregular heartbeat, and this disorder is often triggered by chronic lack of sleep for less than seven hours a night, excessive caffeine intake, and sources of daily stress.
Prevention begins with a “conscious decision”
Cardiologists confirm that approximately eighty percent of premature deaths resulting from vascular diseases can be completely avoided through simple and sustainable preventive steps, which begin with monitoring the vital square of health through periodic examination of blood pressure, blood sugar, cholesterol levels, and weight mass index to correct any imbalance in its beginnings.
Continuous movement plays a crucial role in strengthening the heart, as studies have shown that simple behaviors such as replacing the elevator with climbing the stairs daily reduce the risk of death from heart disease by up to 39 percent.
This physical effort is complemented by the adoption of a conscious food culture that relies on diets rich in vegetables, whole grains, and nuts, and a strict avoidance of hydrogenated oils and excess salts. The heart, which beats about 100,000 times a day to keep a person giving, deserves attention and listening seriously to every beat.
