One yoga session may boost heart health overnight

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adults 18-40 years * Insufficiently inactive define by the L-CAT (responses below public health physical activity guidelines) * Physical activity is not contraindicated (i.e., no affirmative responses on the Physical Activity Readiness Questionnaire for Everyone (PAR-Q+) * Adults with diagnosed insomnia disorder and score ≥ 10 on the Insomnia Severity Index * Good sleeps a score \< 10 (no history of sleep disorder) * Basic understanding of yoga poses * Access to a smart device (such as a smartphone or tablet) Exclusion Criteria: * Regular yoga practice (\> 60 minutes per week) * Any diagnosed medical condition requiring medical clearance determined 'Yes' response on questions pertaining to a present medical condition(s) via PAR-Q+. This includes, but is not limited to, uncontrolled cardiovascular, metabolic, respiratory, musculoskeletal, neurological, or mental health conditions; recent stroke or concussion; active cancer treatment; and any combination of medical conditions that pose a health risk without physician supervision. All "yes" responses on the PAR-Q+ will be evaluated, and individuals requiring clearance will not be eligible to participate. * Physical limitations and/or mobility restrictions (such as bone, joint, or soft tissue such as muscle, ligament, or tendon that could be made worse by becoming more physically active) via PAR-Q+ * Untreated major psychiatric disorders (e.g. major depression, bipolar disorder, schizophrenia) * Elevated risk for sleep apnea (i.e., STOP-Bang score ≥ 5) * Any other sleep disorders other than insomnia (e.g., sleep apnea, restless legs syndrome, circadian rhythm disorder, etc.) * Current treatment for insomnia (e.g., hypnotic medications, cognitive behavioral therapy for insomnia, etc.) * Current medications that affect heart or blood pressure (i.e., anti-depressants, beta-blockers, etc.) * Current or planned pregnancy within the next 3 months * Overnight shift work defined as regularly working anytime between 00:00 and 6:00am