Coloring is a healthy way to relieve stress. It calms the brain and helps your body relax. This can improve sleep and fatigue while decreasing body aches, heart rate, respiration, and feelings of depression and anxiety.

Although coloring isn't the ultimate cure for stress and anxiety, sitting down for a long coloring session holds great value. As you color, pay attention to your breathing rhythm, ensuring steady, full breaths from your diaphragm, and tune into your heart rate periodically if you can.

Other activities have a similar impact like, sewing, gardening, painting, reading, or any activity that reduces your thought process and focuses your body towards full breathes. Anything that reduces thought processes can help you to reflect upon your experiences from the day and build upon them. Reflecting is an important experience to build upon and can help your wellness by framing it into a positive experience. 

Here is a great article about why gardening makes you happy:
https://www.scienceworld.ca/stories/how-does-gardening-make-you-happier/#:~:text=Scientists%20have%20discovered%20that%20the,also%20making%20your%20brain%20happy!