每日英語跟讀 Ep.K136: About Health - 喝酒不論多寡都會傷腦與蜜蜂可嗅出冠狀病毒 Drinking any amount of alcohol causes damage to the brain
There is no such thing as a "safe" level of drinking, with increased consumption of alcohol associated with poorer brain health, according to a new study.
In an observational study, which has not yet been peer-reviewed, researchers from the University of Oxford studied the relationship between the self-reported alcohol intake of some 25,000 people in the UK, and their brain scans.
The researchers noted that drinking had an effect on the brain’s gray matter － regions in the brain that make up "important bits where information is processed," according to lead author Anya Topiwala, a senior clinical researcher at Oxford.
The team also investigated whether certain drinking patterns, beverage types and other health conditions made a difference to the impact of alcohol on brain health.
Scientists have taught bees to smell the coronavirus 科學家教導蜜蜂嗅出冠狀病毒
Scientists in the Netherlands have trained bees to identify COVID-19 through their sense of smell, according to a press release from Wageningen University.
The research was conducted on more than 150 bees in Wageningen University’s bio-veterinary research laboratory.
The scientists trained the bees by giving them a treat — a sugar-water solution — every time they were exposed to the scent of a mink infected with COVID-19. Each time the bees were exposed to a non-infected sample, they wouldn’t get a reward.
Eventually, the bees could identify an infected sample within a few seconds — and would then stick out their tongues like clockwork to collect the sugar water.
Bees aren’t the first animals to detect COVID-19 by scent. Researchers have also trained dogs to distinguish between positive and negative COVID-19 samples from human saliva or sweat with fairly high levels of accuracy.