20:32CrowdScienceCan being happy help me fight infection?BBC World Service Duration: 40 minutes Fri 5th Feb 2021, 20:32 on BBC World Service Americas and the CaribbeanAvailable for over a yearListen nowWhy mood affects how we fight a virus. Show more GenresFactualScience & NatureScience & TechnologyFormatsDiscussion & TalkBrandCrowdScience Source: BBC Online