COMPARE
PopulationAdults with irregular schedulesAdults building an aerobic base alongside strength work
EvidenceMODERATE · MODERATEMODERATE · MODERATE
RiskLOWLOW
TimeframeTwo to four weeks of regularity before it compounds.Eight to twelve weeks, several sessions per week.
The decisionFree, unglamorous, and more reliable than most products. Fix the wake time first; the rest follows.Sustainable by design. Intensity low enough to repeat tomorrow is the point, not the compromise.