We can't stop aging. But Cameron Diaz has discovered that there are ways we can do it well. In this interview about her new project The Longevity Book, Diaz talks about deep-rooted cultural assumptions around aging and the science behind growing older. She explains how examining aging at a cellular level might shine a light on the deepest parts of ourselves, which remain misunderstood. She also shares insights from her own life about how aging affects women and why Hollywood would be wise to create more roles for women in their 40s.