Dry Mouth Is Not Aging — It’s Your Saliva “Shutting Down”: What’s Really Happening
The headline contains an important point but is too dramatic. Dry mouth, medically called xerostomia, is not simply an unavoidable consequence of getting older. The National Institute of Dental and Craniofacial Research states that persistent dry mouth should be evaluated to determine its cause.
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However, saying that your saliva is “shutting down” is also misleading. Dry mouth can range from a temporary feeling of dryness to genuinely reduced saliva production.
Why older adults may develop dry mouth
Common causes include:
Medications: Hundreds of medications can reduce saliva. Drugs used for depression, allergies, high blood pressure, bladder problems, anxiety, pain, and other conditions can contribute. Taking several medications can increase the problem.
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Dehydration: Older adults can be particularly vulnerable to dehydration, which can worsen mouth dryness.
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Mouth breathing or snoring: Breathing through an open mouth, especially overnight, can leave the mouth extremely dry.
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Medical conditions: Diabetes and autoimmune conditions such as Sjögren’s disease can affect saliva production.
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Cancer treatment: Radiation involving the salivary glands can significantly reduce saliva production, sometimes permanently.
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Salivary-gland disorders: Blocked ducts, infections, inflammation, or other gland problems can interfere with saliva flow.
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Why saliva matters
Saliva does much more than keep your mouth wet. It helps with chewing, swallowing, speaking, taste, and protecting teeth and oral tissues. Insufficient saliva increases the risk of cavities, gum problems, mouth sores, and oral fungal infections.
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What you can do
Simple measures may help:
Sip water regularly.
Chew sugar-free gum to stimulate saliva.
Avoid excessive alcohol and tobacco.
Limit sugary foods and drinks.
Maintain good brushing and flossing habits.
Ask a dentist or doctor about artificial saliva or other treatments if symptoms persist.
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Don’t stop a prescription medication on your own because you suspect it is causing dry mouth. A clinician can review your medications and determine whether an alternative or dose adjustment is appropriate.
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Bottom line
Dry mouth isn’t something you should automatically dismiss as “just aging.” It often has an identifiable cause—particularly medications or dehydration—and persistent symptoms deserve attention because adequate saliva is important for maintaining healthy teeth and the mouth.
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