One symptom that has been associated with dementia is the loss of sense of smell.
However, it’s important to know that loss of smell can have several other causes as well. Temporary factors like colds, sinus infections, or allergies can impair your sense of smell, as can more chronic conditions such as nasal polyps, head injuries, or the natural aging process. In some cases, it may also be a lingering effect of viral infections like COVID-19. That said, when changes in smell perception are gradual and unexplained, especially in older adults, it can be worth paying closer attention—as they may signal early neurological changes, including those related to dementia.
Regardless of the cause, actively working to stimulate your sense of smell may offer cognitive and sensory benefits. One gentle and effective approach is scent training, which engages the brain through intentional exposure to different aromas.
Scent training can be a simple and powerful way to stimulate your brain and potentially slow cognitive decline. Just as physical exercise helps maintain muscle strength, regularly exercising your sense of smell can support brain health and encourage neuroplasticity—your brain’s ability to adapt and reorganize.
Here’s a quick daily practice using five essential oils known for their distinct and pleasant aromas: rose, lemon, rosemary, clove, and lavender. These scents are not only enjoyable but can also help trigger emotional memories and associations that deepen the training experience.
How to Do Scent Training:
Each morning and evening, take 20–30 seconds to slowly inhale the scent of each oil, one at a time. Hold the bottle a few inches from your nose, close your eyes, and breathe deeply through your nose while focusing on the aroma. As you breathe in each scent, try to notice the subtleties of the smell and reflect on any memories, feelings, or mental images it may evoke.
This practice helps strengthen the brain’s olfactory pathways and can enhance both memory and mental clarity over time—especially valuable for those noticing early signs of smell loss or mild cognitive changes.
Here are a few additional tips to support your sense of smell and brain health:
-
Use pure, high-quality essential oils for more effective scent recognition - I recommend Naissance UK for high-quality essential oils.
-
Keep a scent journal to note your impressions or any memories that come up.
-
Practice other brain-supportive habits like regular exercise, a balanced diet rich in antioxidants, good sleep, and social engagement.
-
If you notice persistent or unexplained changes in your sense of smell, consult a healthcare provider for further evaluation.
Your sense of smell plays a powerful role in memory, emotion, and quality of life. By incorporating scent training into your routine, you can stay more connected to your senses and support your brain in meaningful ways.
Start with a scent you love—and take a deep breath toward better brain health.