You won’t believe you do it, but you do. After shaking hands with someone, you’ll lift your hands to your face and take a deep sniff. This newly discovered behaviour – revealed by covert filming – suggests that much like other mammals, humans use bodily smells to convey information. We know that women’s tears transmit chemosensory signals – their scent lowers testosterone levels and dampens arousal in men – and that human sweat can transmit fear.
Last week, we wrote about the results of a new survey on lab safety. One of the findings was that scientists are unlikely to tell others of health and safety infringements in the lab. Here Nathan Watson, founder of BioRAFT, a Digital Science-supported company which co-published the survey, tells his story. My left index finger should probably glow green under 488nm light for the rest of my life.
By the time we reach 80, most of us will be infected with a type of herpes virus which erodes the immune system and takes years off your life without you even knowing it. PhD student Jerrald Rector, at the University of Birmingham, knows he has the bug, and is working on ways to keep it from doing harm.