Theou O, et al. – The physicians intended to figure out whether the degree of frailty affects the association between sedentary behaviours and higher risk of mortality. They reported that the effect of sedentary behaviours on mortality varied by level of frailty. The greatest adverse impact was experienced by adults with the highest frailty level. Whereas, low frailty levels (frailty index score ≤ 0.1) appeared to eliminate the increased risk of mortality associated with prolonged sitting, even among people who did not meet recommended physical activity guidelines.