Here's some interesting research on aging from University College in London - arts and cultural engagement (ACEng), including photography, may contribute to healthy aging at the biological level.

Our findings add to the existing literature on arts and health, positioning ACEng as a potential contributor to healthy ageing at the biological level and underscoring the potential value of integrating ACEng into public health strategies and initiatives.

This is a great excuse to get out there and shoot, and may be a decent justification for some new gear. ;-)