Our sense of smell is directly connected to the olfactory bulb, which is closely linked to the hippocampus and amygdala — areas of the brain that manage memory and emotions. These regions are often among the first affected by Alzheimer’s disease.
This explains why patients may lose the ability to distinguish scents before noticeable memory problems arise. The brain simply stops processing smells the way it once did, leading to confusion or complete loss of odor recognition.
