I'm 29 this year, and as the big 3-0 looms, I find myself thinking more deliberately about getting older — about the new wrinkle I recently noticed on my face, whether I'm getting enough steps and sleep , and how all of it might shape the way I feel decades from now. The number of people 60 and over is expected to rise from 1 billion in 2020 to 1.4 billion by 2030. By 2050, that figure will double to 2.1 billion, according to WHO projections . But statistics don't capture what aging can look