[Figure 6].

Cortical microvascular density in aged mice. (a) Representative MIP images of the three-dimensional angiograms of three mice in the sedentary group and three mice in the exercise group, over the cortical depth range from 50 μm to 400 μm, and 200 × 200 μm² FOV. Scale bars: 50 μm. (b) Vessel segment density and (c) vessel length density of cortical capillaries from sedentary (n=19,669 segments; n=9 mice) and exercise (n=18,044 segments; n=8 mice) group. Student’s t-test. **p<0.01; *** p<0.001. Please see Supplementary document for exclusions.