“…Lack of sleep impairs EFs (Bernier, Beauchamp, Bouvette-Turcot, Carlson, & Carrier 2013; Labelle et al, 2015; Saunamäki & Jehkonen, 2007). Exercise reduces stress and depressive feelings (Carmack, de Moor, Boudreaux, Amaral-Melendez, & Brantley, 1999; Haslacher et al, 2015; Williamson, Dewey, & Steinberg, 2001) and improves sleep (Chen, Fox, Ku, & Chang, 2015; Wachob & Lorenzi, 2015; Yang, Ho, Chen, & Chien, 2012). However, no study has yet explored whether any EF benefit from exercise alone (sans cognitive or social components) might be due to the effects of exercise on reduced stress or improved sleep.…”