A reduced ability to smell familiar scents—like shampoo or soap—during your shower could be more than a passing issue. It may be an early sign of Alzheimer’s disease, researchers say.
Why Smell Matters
- Your sense of smell is closely linked to memory and emotion via brain regions like the hippocampus and amygdala.
- These areas are often the first to show damage in Alzheimer’s.
- Anosmia (loss of smell) can appear years before memory loss.
Smell Check in the Shower
If you consistently can’t detect your usual soap or shampoo scent, it may signal early cognitive changes—especially if paired with:
- Trouble identifying other odors (like food or smoke)
- Subtle memory or behavior changes
The Research
- A University of Chicago 8-year study found that poor performance on a 12-scent test correlated with a higher risk of developing Alzheimer’s.
- The smell test may be an effective, low-cost early screening tool for cognitive decline.
When to Seek Help
Contact a doctor if:
- Smell loss is persistent
- You also notice early cognitive signs (confusion, forgetfulness)
- No cold, allergy, or sinus infection is present
Other Early Signs of Alzheimer’s
- Memory lapses
- Trouble with routine tasks
- Time/place confusion
- Vision/spatial issues
- Mood or personality changes
- Social withdrawal
Ways to Support Brain Health
While Alzheimer’s can’t be fully prevented, you can support your brain by:
- Exercising regularly
- Eating a balanced diet (rich in vegetables, fruits, and lean protein)
- Engaging in social and mental activities
- Managing stress and getting quality sleep
Final Thought: The Nose Knows
Don’t ignore your nose. Regularly noticing less scent in daily activities—like showering—may offer a valuable early clue about your brain’s health. Early action can lead to better outcomes.