Professor Oswald said for the average person, the dip in mental health and happiness comes on slowly, not suddenly in a single year.Link (Via Mind Hacks)
Only in their 50s do most people emerge from the low period.
"But encouragingly, by the time you are 70, if you are still physically fit then on average you are as happy and mentally healthy as a 20-year-old.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects