Jan 22, 2013 NPR
Every living thing is a pulse. We quicken, then we fade. There is a deep beauty in this, but deeper down, inside every plant, every leaf, inside every living thing (us included) sits a secret.
There's a mathematical formula buried deep in living things that tells us — all of us, dandelions, gorillas, sea grasses, elm trees, buttercups — when it's time to die. Scientists think there is such rule.... http://www.npr.org/blogs/krulwich/2013/01/22/169976655/nature-has-a-formula-that-tells-us-when-its-time-to-die?ft=3&f=111787346&sc=nl&cc=es-20130127