VOA慢速英语:Looking on the Bright Side Might Help You Live Longer

optimism – n. a feeling or belief that good things will happen in the future : a feeling or belief that what you hope for will happen : optimist is a person who is optimistic

pessimism – n. a feeling or belief that bad things will happen in the future : a feeling or belief that what you hope for will not happen : pessimist is a person who is pessimistic

resilience – n. an ability to recover from or adjust easily to misfortune or change

epidemiology – n. medical the study of how diseases spread and how they can be controlled.

cardiovascular – adj. of, relating to, or involving the heart and blood vessels

mortality – n. the quality or state of being a person or thing that is alive and therefore certain to die : the quality or state of being mortal