Failing a 10-second one-leg stand is a midlife signal.
Araujo et al. (BJSM 2022): inability to complete a 10-second one-legged stance (single-leg balance hold) associated with higher all-cause mortality after adjusting for age, sex, BMI, comorbidities. Association, not a personal diagnosis.
Usable rule: eyes open, free arms, either leg. Can you hold 10 seconds? Practice daily if not.
Drop BALANCE if you are timing that hold this week.