longevity - long life, gene - a part of a cell in your body that you get from your parents and controls what you look like, trait - a quality, good or bad, in sb’s character, consumption - eating or drinking sth, life expectancy - the length of time that a person is likely to live, dementia - a serious illness of the mind, especially in old people, fast - a period of time when no food, or only certain food, is eaten , contribute (to) - be one of the causes of an event or situation, rate - how often sth happens or how many people sth happens to , average - a number or amount calculated by addingseveral amounts together and then dividing the total by the number of amounts, commitment - a promise or decision to do sth, favour - support,

Close up, B1+, unit 3

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