Yesterday I ran half a mile non-stop, no-walking, up ~300 feet elevation gain to the top of Mount Olympus¹.
4 years ago I barely ran half a block up ~30 feet without losing my breath.
Tank Hill next². #practiceandalliscoming #100PDPD #2008_006
¹ https://en.wikipedia.org/wiki/Mount_Olympus_(San_Francisco)
² https://en.wikipedia.org/wiki/List_of_hills_in_San_Francisco