From May 2015 to October 2018, the researchers followed the pregnancy journeys of more than 10,000 women living in Malawi. A total of 4,549 people were randomly assigned to chew xylitol gum ...

But how do you persuade people to donate their gum - instead of carelessly tossing it on to the street? As part of her strategy, Anna created bright pink, bubble-shaped bins specially for ...