https://www.theguardian.com/environment/2022/sep/02/scientists-unlocking-secrets-why-forests-make-us-happy

Research project aims to discover how age, size and shape of woodlands affect people’s happiness and wellbeing

How happy do you feel right now? The question is asked by an app on my phone, and I drag the slider to the space between “not much” and “somewhat”. I’m about to start a walk in the woods that is part of a nationwide research project to investigate how better to design the forests of the future.