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| Description: Chronic stress lasting a month or more boosts the risk of catching a cold. The risk is increased among people undergoing problems with their friends or loved ones; it is highest among people who are out of work (Cohen et al., 1998). Picture Stats: Views: 350 Filesize: 71.85kB Height: 481 Width: 663 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39305 |