Scott Wallace, Ph.D., A Clinical Psychologist in Canada has put together practical, common sense stress management information, check it out. Columbia University explores how stress has taken over the lives and pocketbooks of Americans. One who practices Yoga is a Yogi. There are many different names applied to Yoga, Hatha Yoga, Raja Yoga, Kriya Yoga, Siddha Yoga and lots more. All these various schools have the same goal and that is union.
Yoga is the goal of meditation.
When one feels Yoga, one feels together, cohesive and harmonious. Conversely when one does not feel Yoga one feels not together, non cohesive and inharmonious, which is stressful. The latter state fills ones life with confusion, insecurity and fear. Whereas Yoga fills ones life with continuity, security and love. All Indian Philosophical schools of meditators seek to realize yoga.