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Articles on Smell

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The compact olfactory system provides a more accessible way to study the brain as a whole. Esther Kok/EyeEm via Getty Images

From odor to action – how smells are processed in the brain and influence behavior

Understanding how the brain translates smells into behavior change can help advance search and rescue technology and treatments for neurological conditions.
A floral scent can be enjoyable for a person, but it has an important job for the flower. Richard L. Harkess

Why do flowers smell?

Not all flowers smell good, to people at least, but their scents are a way to attract pollinators.
Suddenly unable to smell your morning coffee? You likely have COVID-19. Kseniya Ovchinnikova/Moment via Getty Images

Daily DIY sniff checks could catch many cases of COVID-19

COVID-19 patients often lose their sense of smell and taste. This is rare for a viral infection. At-home smell tests could be used as a screening tool and help slow the spread of the coronavirus.
Geoffrey McKillop (front) with his partner Nicola Dallet McConaghie as they left the hospital where he was discharged after surviving coronavirus. Liam McBurney/PA Images via Getty Images

What doctors know about lingering symptoms of coronavirus

Is it possible that people who recover from COVID-19 will be plagued with long term side effects from the infection? An infectious disease physician reviews the evidence so far.

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