Tag: can

Simply Talking While Infected Can Spread COVID-19 – Even While Wearing Masks

Airflow patterns around two people conversing in typical situations, such as hair salons, medical exam rooms, and long-term care facilities. COVID-19 can spread from asymptomatic but infected people through small aerosol droplets in their exhaled breath. Most studies of the flow of exhaled air have focused on coughing or sneezing, which can send aerosols flying […]

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This gooey, brainless blob can store memories

A neon-yellow slime mold can store memories, even though it lacks a nervous system. Now, scientists have found a new clue as to how the brainless blob manages this impressive feat. The single-cell organism, known as Physarum polycephalum, belongs to the taxonomic group Amoebozoa, the same group as amoebas, Live Science previously reported. The blobs […]

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Common Weed Killers Can Increase the Prevalence of Antibiotic Resistant Bacteria

Setting up soil microcosms for herbicide exposure experiment. Credit: Liao Hanpeng The use of weed killers can increase the prevalence of antibiotic resistant bacteria in soil, a new study from the University of York shows. Herbicides are one of the most widely used chemicals in agriculture and while these compounds are used to target weeds, […]

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Lucid dreamers can hear and answer questions while still asleep, scientists find

Scientists have successfully “talked” to a sleeping person in real-time by invading their dreams, a new study shows. The researchers say it’s like trying to communicate with an astronaut on another world. Dreamers can follow instructions, solve simple math problems and answer yes-no questions without ever waking up, according to the results of four experiments […]

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Irregular Sleep Schedules Can Worsen Mood and Increase Risk of Depression

The more variation in wake-up time and sleep time, the worse mood and more chance of depression symptoms in study of first-year medical residents. An irregular sleep schedule can increase a person’s risk of depression over the long term as much as getting fewer hours of sleep overall, or staying up late most nights, a […]

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