changes

Even before you bid your 30s adieu, you might start noticing that things with your body aren’t quite the same as they used to be. Why? Hormones that have been steady since puberty begin to drop, laying the groundwork for an end to ovulation and some pretty major side effects. Welcome to the beginning of…

By Donna Lu Colour-changing hair dye and skin patches that show UV exposureAlex Mariakakis et al. 2020 Colour-changing stickers and hair dye that react to ultraviolet light could help people gauge when they’re at risk of sunburn. Alex Mariakakis at the University of Washington in the US worked with a team at Microsoft to develop…

Leaders with the Minnesota Department of Health said they will not be changing any safety guidelines until further evidence of airborne transmission warrants it. ST PAUL, Minn. — The World Health Organization now recognizes the potential for airborne spread of the coronavirus through microscopic particles that remain in poorly ventilated air for hours. The change…

President Cyril Ramaphosa during a visit to assess Mpumalanga's Covid-19 response. President Cyril Ramaphosa says Covid-19 has accelerated the pace and nature of changes experienced in the working world. He told the International Labour Organisation during its global summit on the pandemic that while the outbreak has infected fewer people in Africa, its social and economic…

By Jessica Hamzelou Bad for your brain?Elizabeth Perez Holowaty/Getty I We know diets can shape the billions of bacteria that live in your gut. Now, research in rats suggests the gut bacteria may, in turn, affect brain function by changing the way genes are expressed in areas important for memory. Scott Kanoski at the University…