https://www.health.harvard.edu/authors/syed-moin-hassan-md/feed/atom<![CDATA[Harvard Health Posts by Syed Moin Hassan, MD Feed]]>https://www.health.harvard.edu/img/logos/hhp-logo-mark-lg.jpg173144Harvard Health Blog: You'll find posts from Harvard Medical School physicians and our editors on a variety of health news and issues.2020-05-13T14:30:25-04:00<![CDATA[Why your sleep and wake cycles affect your mood]]>https://www.health.harvard.edu/blog/why-your-sleep-and-wake-cycles-affect-your-mood-20200513197922020-05-13T14:30:25-04:00