Is Sleep Duration worth prioritizing?

Sleep duration and mortality risk is one of the more extensively meta-analyzed relationships in sleep research, with multiple independent meta-analyses of prospective cohorts consistently finding a U-shaped relationship: both short and long habitual sleep are associated with higher all-cause and cardiovascular mortality compared to moderate durations. Weighing that against the numbers, Sleep Duration is a strong candidate to prioritize — it combines strong evidence (80/100) with a high estimated impact on longevity (82/100).