By Donna Lu Squiggly pencil lines on paper make inexpensive electrodes that can sense heart rate or skin temperatureYadong Xu Pencil sketches on paper can be used as sensors that detect a variety of physiological signals, including heart rate, skin temperature and compounds in sweat. Zheng Yan at the University of Missouri and his colleagues…
The free school meals program caused 177 food poisoning outbreaks, affecting more than 20,000 schoolchildren. Published: February 26, 2026, 12:05 am An analysis of Indonesia’s school meals program has exposed a host of problems as well as almost 180 outbreaks. In January 2025, the Indonesian government launched a national free meals program to improve nutrition
Social media algorithms love challenges with a number. I, for one, can’t get enough of the viral 12-3-30 treadmill workout (walking at 12% incline, at a speed of 3 miles per hour, for 30 minutes). I’ve yet to dabble in any others, but there’s a new one circulating that I’m tempted to take for a
Editors note: Doralice Goes, a Brazilian public servant, visited an organic products fair in her home city of Brasília in Federal District, on Dec. 31, 2021. Among the artisanal products was a tomato and almond pesto sauce. The 49-year-old stored it in her pantry and, 23 days later, on a Sunday night, opened the sauce