Written by Jennifer Sample, MD | Reviewed by Christine Giordano, MDUpdated on June 25, 2024 Key takeaways: Sweaty feet create a warm, moist environment that’s perfect for bacteria and fungi growth. Certain bacteria produce an odor, causing stinky feet.You may be more prone to developing stinky feet in warm weather, if you wear tight shoes,...
Tag: <span>smell</span>
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How to remove the smell of smoke
Thirdhand smoke can leave a lingering odor on carpets, cars, clothes, skin, and hair after a cigarette. The best way to remove this odor is to quit smoking, but a person can also help improve or remove the smell. The odor of cigarette smoke remains due to a residue that can cling onto clothing fibers,...
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Researchers present insight into the neural cartography of smell
by Columbia University Labeled in red and green in this photo illustration are axons of sensory cells in a single glomerulus within a mouse brain’s olfactory bulb. Credit: Hani Shayya/Stavros Lomvardas/Columbia’s Zuckerman Institute Rendering the invisible visible is among scientists’ favorite challenges. The sea creature-like images are microscopic portraits of brain cells that make sense...
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Most patients regain taste, smell following COVID-19
Nearly nine in 10 patients reporting a COVID-19-related smell or taste dysfunction completely recovered within two years, although recovery took more than six months for 10.9 percent of patients, according to a research letter published online Aug. 4 in JAMA Otolaryngology-Head & Neck Surgery. Paolo Boscolo-Rizzo, M.D., from University of Padova in Italy, and colleagues estimated...
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Can ‘smell’ trigger tumors?
by Zhejiang University Credit: Lu Shaoqing and Liu Chong How tumors emerge has always been quite a conundrum in the scientific community. With unremitting efforts over more than six years, the research team led by Prof. Liu Chong at the Zhejiang University School of Brain Science and Brain Medicine, the Second Affiliated Hospital, Zhejiang University...
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When a smell evokes a memory: Clues about how the two are linked in the brain
by Michael Schmuker, The Conversation Credit: wavebreakmedia/Shutterstock In an episode of the popular TV series “Black Mirror” called “Crocodile,” an investigator asks a witness to smell a bottle of beer. The aim is to refresh her memory of a crime scene (the crime took place near a brewery). This might not exactly be standard practice,...
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The ‘surprisingly simple’ arithmetic of smell
by Washington University in St. Louis After reaching a threshold of ON neurons, a locust can smell an odor. Once OFF neurons fire, the smell goes away. Credit: Raman lab Smell a cup of coffee. Smell it inside or outside; summer or winter; in a coffee shop with a scone; in a pizza parlor with...
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When the senses get confused
The SYNGAP1 gene, recently recognized for its role in intellectual disability and epilepsy, may also affect the sensory system of patients with a genetic mutation linked to this gene. That’s the surprising finding of a new study led by scientists at CHU Sainte-Justine and Université de Montréal published in Brain. Image credit: Jonson Goh via pixabay.com, CC0...
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Artificial networks learn to smell like the brain
by Jennifer Michalowski, Massachusetts Institute of Technology Unlabeled diagram of the olfactory system showing the anatomy of smell. Credit: Andrewmeyerson/Wikimedia Commons, CC BY-SA 3.0 Using machine learning, a computer model can teach itself to smell in just a few minutes. When it does, researchers have found, it builds a neural network that closely mimics the olfactory...
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Sense of smell is our most rapid warning system
by Karolinska Institutet Credit: Behzad Iravani The ability to detect and react to the smell of a potential threat is a precondition of our and other mammals’ survival. Using a novel technique, researchers at Karolinska Institutet have been able to study what happens in the brain when the central nervous system judges a smell to represent danger. The...
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