Colouring is considered a  therapeutic tool, and this simple activity can significantly reduce anxiety and depression. By focusing on intricate patterns, it promotes a state of mindfulness, allowing for relaxation and creative expression without the pressure of artistic skill. Since the early 2010s, adult colouring books have become a popular, accessible form of stress relief, with research confirming their positive impact on mental well-being.

Link to article:

https://www.ebsco.com/research-starters/visual-arts/health-benefits-coloring