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Understanding Olfactory Hallucinations and Stroke Risk: What You Need to Know in 2026

"The sensation of smelling something that is not present in your environment, medically referred to as phantosmia, is a clinical phenomenon that warrants serious investigation. When individuals ask what they might smell before a stroke, they are often referencing a specific neurological event known as an olfactory aura. While not every instance of smelling a phantom odor—often described as burnt toast, rubber, or chemicals—is an indicator of an imminent stroke, it is recognized by neurologists as a potential sign of focal seizure activity or a transient ischemic attack (TIA). As of 2026, clinical guidelines emphasize that any sudden onset of s..."

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