Articles tagged with Nostrils
A new review emphasizes the importance of smell health, highlighting its role in nutrition, cognitive function, and psychological resilience. Researchers call for a global campaign to promote smell health through education, awareness, and targeted public health policies.
A study found that intimate physical contact reduces cortisol responses, while oxytocin administration promotes wound healing. This integration of relationship dynamics and neurohormonal modulation may lead to future interventions for improved health and recovery.
A daily intranasal corticosteroid treatment with stapokibart resulted in reduced polyp size and improved nasal symptom severity after 24 weeks. Stapokibart, a novel monoclonal antibody, showed efficacy in treating severe uncontrolled chronic rhinosinusitis with nasal polyps.
Researchers found a strong association between asthma and repeated antibiotic use in predicting nasal polyp recurrence after endoscopic sinus surgery. The study suggests that patients with severe chronic rhinosinusitis with nasal polyps may benefit from additional treatments like biologics to manage the disease.
Researchers at Binghamton University discovered that water anoles produce a special bubble over their nostrils to breathe underwater and evade predators. The study found that the bubble serves a functional role in respiration, allowing lizards to stay submerged for longer periods.
A study explores the link between shark nose shape, size, and sensitivity of smell. The researchers found that more lamellae in rosettes with an elongated shape are associated with increased odor sensitivity.
A systematic review and meta-analysis of 52 studies found that electronic noses can accurately detect volatile organic compounds in exhaled breath for cancer diagnosis. The diagnostic accuracy varied across studies, with some showing high sensitivity and specificity.
A new study published in Microbiology Spectrum found that nasopharyngeal swabs were the most effective method for detecting COVID-19, with detection rates ranging from 92 to 100%. Saliva and anterior nares tests had lower detection rates, particularly in asymptomatic patients.
A recent study published in Canine Medicine and Genetics found that French Bulldogs have a significantly higher risk of being diagnosed with 20 common health disorders compared to other breeds. The authors propose breeding towards more moderate characteristics to reduce these risks.
Researchers discovered three phases of growth that explain how cetaceans shift their nasal passage from a parallel to an angled orientation. This finding provides insight into the developmental process and could inform our understanding of cetacean evolution.
Researchers found that elephants can store up to nine liters of water by dilating their nostrils, allowing them to suck up three liters per second. This unique ability has inspired the development of more efficient robots using air motion, and may also help conservation efforts for endangered elephant species.
Researchers observed shifts in nasal passage orientation in spotted dolphin and fin whale embryos and fetuses, revealing a complex evolution process. The study suggests that the two types of cetaceans may have developed their characteristic blowholes through different developmental processes.
Researchers found that human participants consistently biased their movements toward a perceived stronger odor source, even when unable to report nostril detection. The study suggests that humans navigate with stereo olfaction, similar to the binocular and binaural senses that enable 3D perception.
A young man ruptured his throat by trying to contain a forceful sneeze with a dangerous maneuver. Doctors advise against blocking both nostrils when sneezing due to risks of air bubbles in chest tissue and muscle perforation.
A new software algorithm turns low-cost thermal cameras into portable, low-cost breathing monitors for elderly people, sleep apnea sufferers, and babies at risk for SIDS. The system can detect breathing problems in real-world movement and temperature changes.
Research found that cohabitating couples share similar skin microbiomes, especially on their feet, and that biological sex can be identified based on certain body regions
The study found that nose width is strongly correlated with temperature and humidity levels in different climates, suggesting a role for natural selection in shaping nose shape. The researchers also identified differences between men and women in nose features across populations.
A study published in PLOS Genetics found that nose size and shape are linked to differences in ancestral temperature and humidity levels. Wider nostrils were correlated with ancestors who lived in warmer climates, suggesting a role for climate in shaping human nasal evolution.
A team of researchers developed an artificial dog nose that mimics the 'active sniffing' of dogs, improving vapor detection by up to 16-fold. The technology uses fluid dynamics and entrainment to increase aerodynamic reach and sample vapors at increasingly large distances.
A review article compares over-the-counter mechanical nasal dilators for their ability to dilate the internal nasal valve and improve airflow. The study found that external nasal dilator strips and nasal clips effectively relieve obstruction of the internal nasal valve.
Scientists discovered that wapitis produce two mechanisms to create their eerie calls: a low-pitched roar matching their size and a high-pitched whistle using nasal cavities. This unusual adaptation allows wapitis to communicate accurately despite their large size.
Researchers find that ticks are prevalent on lemurs' noses, particularly male Haemaphysalis lemuris, which attach to the nostrils. The study suggests that the nose is a strategic location for ticks to find mates and avoid being plucked off during grooming.
Fossil evidence reveals the step-by-step assembly of the face during the evolutionary transition from jawless to jawed vertebrates. The Romundina skull shows primitive and modern features, shedding light on the origin of the jawed vertebrate face.
A new technique for reconstructing the nose after skin cancer has been developed at Michigan Medicine, offering a more efficient and effective solution. The procedure eliminates the need for a skin flap, reducing the risk of complications and allowing patients to achieve good cosmetic results without undergoing a second surgery.
A study by Kenneth Catania at Vanderbilt University has found that common moles rely on stereo sniffing to detect odor gradients, a skill previously thought to be limited to visual and auditory perception. This discovery opens new avenues for research into the capabilities of other mammals that heavily rely on their sense of smell.
A Northwestern University study reveals that brain activity changes in olfactory regions after a week of blocked nostrils, compensating for the interruption of the sense of smell. The brain's response to odors returns to normal shortly after free breathing is restored.
Researchers have confirmed the presence of the critically endangered snub-nosed monkey species in China's Yunnan province. The population is estimated to be less than 100 individuals and faces numerous threats due to habitat loss and hunting.
Researchers discovered sharks can detect small delays in odor detection to navigate, using bilateral detection to orient towards the strongest scent. This finding refutes previous theories on scent trail following and may lead to improved underwater robots for chemical leak detection.
A study published in Current Biology found that nostrils can experience a 'binaral rivalry' when receiving different scents, causing an olfactory illusion. This phenomenon is observed in other paired sensory organs like eyes and ears.
Researchers at Rice University found that when the nose is presented with two different smells, the brain processes them separately through each nostril in an alternating manner. This 'perceptual rivalry' in the olfactory system allows individuals to perceive one smell predominantly at a time, creating an 'olfactory illusion'.
A saline nasal wash solution improved nasal symptoms and reduced the recurrence of respiratory infections in children with the common cold. Children using the saline group had fewer days of illness, missed school days, or complications compared to those receiving standard medication.
A study finds that Staphylococcus aureus nasal colonization is linked to persistent S. aureus infections, highlighting a potential target for non-antibiotic interventions. Plague remains a current threat globally, with most cases occurring in Africa and Asia, primarily through contact with infected rodents and fleas.
Researchers at UC Berkeley found that humans gain a performance advantage from cross-nostril comparisons when tracking scents. With training, humans can improve their accuracy significantly and nearly double their speed. This discovery challenges the common assumption that humans are poor smellers compared to other mammals.
Researchers at UC Berkeley found that humans can reliably discern the source of an odor when presented with it through one nostril. The brain's primary olfactory cortex is divided into separate areas for each nostril, allowing for accurate localization. This ability has implications for various fields, including truffle hunting.
A reconstructive technique successfully corrects severe nasal septal deformities with high functional and aesthetic results. Postoperative complications are rare, and the technique is deemed safe and practical for surgeons dealing with difficult cases.
Researchers at UC Berkeley have found that the adult brain has more capabilities to change than previously thought. By exposing non-detectors to a specific odor, they showed that both nostrils can learn to detect it, suggesting a central component in the brain is involved in olfactory learning.
Researchers investigated how nasal volume affects nasal air-conditioning process when subjects lie face-up. The study found that increasing nasal mucosal temperature enhances nose's warming and humidifying abilities, but lying face-up reduces this ability.
Research by Lawrence Witmer reveals that many dinosaurs had large nasal passages, contrary to previous depictions. The study suggests that these passages were positioned closer to the mouths and farther from the eyes, which could have been important for heat exchange and other physiological processes.
A new study reveals that dinosaurs' noses were positioned closer to the mouth than previously thought, offering insights into their respiratory system and evolutionary advantages.
A new study in the journal Science found that dinosaurs' fleshy nostrils were typically positioned forward of their bony nose openings. This finding has implications for how dinosaurs breathed, smelled, and regulated body temperature and water loss, potentially providing clues to their adaptations to different environments.
Scientists discover that people prefer certain smells when sniffed through one nostril over the other. The left nostril is more accurate for identifying odours, while the right nostril enhances pleasantness perception. This finding fits with brain processing theories and may lead to further research on smell perception.