The human sense of smell connects directly to brain regions responsible for memory and cognitive function, making it a surprisingly accurate window into neurological health. As people age, changes in ...

Human sniffs last between one and three seconds. During that time, chemicals enter the nose and allow us to perceive the smells around us. But whether humans can perceive odor changes shorter than the ...

Closely related subtypes of dopamine-releasing neurons may play entirely separate roles in processing sensory information, depending on their physical structure. New research from the Institute of ...

Losing your sense of smell might signal Alzheimer’s far earlier than expected. Scientists found that immune cells in the brain actively destroy smell-related nerve fibers after detecting abnormal ...

Sometimes the reason you feel so drained at home is not stress or age at all, but what you are breathing in every day.

How smells impact your mental health, and the benefits of sniffing a flower for just 30 seconds.

A recent study examining the lasting impacts of the coronavirus concluded that people living with long COVID who suffer from anosmia -- the loss of smell -- experienced a significant shift in brain ...

Scientists have long known that when sounds are faint or objects are seen through fog in the distance, repetition of these weak or ambiguous sensory “inputs” can result in different perceptions inside ...

Gut bacteria create smells that influence behavior, shaping aggression and social hierarchy through the brain.