Paul instructed the Thessalonians to work with their hands. How strange this must have sounded to residents of a Greek city. The Greeks despised manual labor as degrading and unsuitable for free men. But Christianity collides directly with this view.
Paul was a tentmaker, Jesus a builder. Both gave dignity to all honest human labor. Even something as simple as gardening can be beneficial to your health by combining physical activity with exposure to nature and sunlight. I even find that pulling weeds can be therapeutic and relaxing after a long day of writing.
Simply put, getting dirty is good for us.