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Staying out of sync with one's circadian rhythm can lead to many complications over time, including a higher likelihood for cardiovascular disease, cancer, obesity, and mental health problems [1]. Constant changes in daily rhythm due to shift work has been shown to increase risk factors for cancer, obesity, and Type 2 diabetes. Moreover, the advent of technology and the resultant always-on ethos can cause rhythm disruption on personal and societal levels for about 70% of the population [2].<\/jats:p>\n          <jats:p>Circadian disruption can also cause a serious deficit in cognitive performance. In particular, alertness - a key biological process underlying our cognitive performance - reflects circadian rhythms [3]. Sleep deprivation and circadian disruption can result in poor alertness and reaction time [3]. The decline in cognitive performance after 20 to 25 hours of wakefulness is equivalent to a Blood Alcohol Concentration (BAC) of 0.10% [4]. To compare, in New York State, a BAC of more than 0.05% is considered \"impaired\" and 0.08% is considered \"intoxicated\" [5]. In other words, the effects of sustained sleep deprivation and circadian disruption on cognitive performance is similar (or worse) to being intoxicated.<\/jats:p>","DOI":"10.1145\/3379092.3379100","type":"journal-article","created":{"date-parts":[[2020,1,11]],"date-time":"2020-01-11T04:15:16Z","timestamp":1578716116000},"page":"16-22","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Mobile Sensing of Alertness, Sleep and Circadian Rhythm"],"prefix":"10.1145","volume":"23","author":[{"given":"Akane","family":"Sano","sequence":"first","affiliation":[{"name":"Rice University, Houston, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tauhidur","family":"Rahman","sequence":"additional","affiliation":[{"name":"University of Massachusetts Amherst, Amherst, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Michigan State University, Lansing, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deepak","family":"Ganesan","sequence":"additional","affiliation":[{"name":"University of Massachusetts Amherst, Amherst, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tanzeem","family":"Choudhury","sequence":"additional","affiliation":[{"name":"Cornell Tech, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2020,1,10]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11910-012-0252-0"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2012.03.038"},{"key":"e_1_2_1_3_1","volume-title":"Th e cumulative cost of additional wakefulness: dose-response eff ects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivation","author":"Van Dongen H.P.A.","year":"2003","unstructured":"H.P.A. 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