(1) Martin CR, Osadchiy V, Kalani A, Mayer EA (2018). The Brain-Gut-Microbiome Axis. Cellular and Molecular Gastroenterology and Hepatology Volume 6, Issue 2, 2018, Pages 133-148. https://doi.org/10.1016/j.jcmgh.2018.04.003
(2) Smith RP, Easson C, Lyle SM, Kapoor R, Donnelly CP, Davidson EJ, Parikh E, Lopez JV, Tartar JL (2019). Gut microbiome diversity is associated with sleep physiology in humans. PLoS ONE 14(10): e0222394. https://doi.org/10.1371/journal.pone.0222394
(3) Takada M, Nishida K, Gondo Y, Kikuchi-Hayakawa H, Ishikawa H, Suda K, Kawai M, Hoshi R, Kuwano Y, Miyazaki K, Rokutan K (2017). Beneficial effects of Lactobacillus casei strain Shirota on academic stress-induced sleep disturbance in healthy adults: a double-blind, randomised, placebo-controlled trial. Benef Microbes 8:153-162. https://doi.org/10.3920/BM2016.0150
(4) Matenchuk BA, Mandhane PJ, Kozyrskyj AL (2020). Sleep, circadian rhythm, and gut microbiota. Sleep Medicine Reviews 53 (2020) 101340. https://doi.org/10.1016/j.smrv.2020.101340
(5) Deaver JA, Eum SY, Toborek M (2018). Circadian Disruption Changes Gut Microbiome Taxa and Functional Gene Composition. Front Microbiol 9, 737 https://doi.org/10.3389/fmicb.2018.00737
(6) Parkar SG, Kalsbeek A, Cheeseman JF (2019). Potential Role for the Gut Microbiota in Modulating Host Circadian Rhythms and Metabolic Health. Microorganisms 7(2):41. https://doi.org/10.3390/microorganisms7020041