VOA慢速英语:研究表明细菌可能与紧张和抑郁有关

antibiotic - n. a drug that is used to kill harmful bacteria and to cure infection

anxiety - n. fear or nervousness about what might happen

dramatic - adj. sudden and extreme

factor - n. something that helps produce or influence a result

fungi - n. any one of a group of living things (such as molds, mushrooms, or yeasts) that often look like plants but have no flowers and that live on dead or decaying things

obese - adj. fat in a way that is unhealthy

journal - n. a magazine that reports on things of special interest to a particular group of people

metabolism - n. the chemical processes by which a plant or an animal uses food, water, etc., to grow and heal and to make energy

multiple - adj. more than on