“…However, there has been coincidental reductions in exercise participation and sleep duration in recent decades which is reportedly due to a commonly cited barrier of âlacking timeâ (Buman et al., ; Gibala, Little, MacDonald, & Hawley, ; Rajaratnam & Arendt, ). For example, in Australia peak inactivity occurs at 35â54 years of age (ABS, ), while 60â64% of this age group also have at least one persistent sleep problem, such as not obtaining adequate sleep, feeling unrefreshed upon waking, or waking frequently during the night (Adams et al., ). In addition, reduced sleep duration has also played a significant role in the upregulation of the orexigenic hormone acylated ghrelin and downregulation of anorexigenic hormones such as leptin and peptide tyrosine tyrosine (PYY) which is highlighted in acute sleep deprivation studies (Magee, Huang, Iverson, & Caputi, ; Omisade, Buxton, & Rusak, ; StâOnge, O'Keeffe, Roberts, RoyChoudhury, & Laferrere, ).…”