There are proven links between poor physical health and high stress levels, and Ayurvedic texts going back thousands of years recognized how taxing worry can be on the body and spirit. Treatments for reducing or relieving stress include the tonics and activities mentioned for physical well-being, but an added emphasis for balancing mood and mental activity can include getting more deeply in tune with the spiritual and tipping the scales back down from the material world. Even the Bible talks about "being choked out by the concerns of this world," and Ayurvedic medicine has long held the same belief. Worry and stress can literally take the life out of people and lead us away from a life more balanced and centered in the spiritual and non-physical.
Breathing for breathing sake is one way to stop the noise and re-center the mind and body, and taking breaks to stop thinking too much -- which is harder than it sounds, most of us know -- are actually medicinal when used in harmony with other Ayurvedic practices. One way to start is to avoid or reduce time in situations known to trigger your own worry.
Nourish the mind instead of letting the mind eat or consume you is one way to look at it.