Figure 3. Biological age acceleration (BAA) correctly ranks life expectancy. (A) Assuming the negative logarithm of average daily steps is a proxy for bioage, the observed positive correlation (Pearson’s r = 0.81 for males) with life expectancy is an incorrect prediction. (B) The negative correlation (Pearson’s r=–0.27 fro males) of GeroSense BAA with life expectancy is correct. Similar results were observed for females with Pearson’s r=0.19 and r=–0.55, respectively (data not shown). The calculations were performed in NHANES 2005−2006 cohort aged 30−60 y.o.