Running is an addictive activity. You feel so good, you never want to let it slide. Yet running, like many other pursuits, can be carried too far - from habit to obsession. When running is no longer a joy and a release from the pressures of the world, but a manic pursuit, then family, friends and your job are likely to suffer. The best advice I can give to avoid this sad state of affairs is to first, be aware of the early warning signs: recurring injuries, depression, loss of motivation, irritability, fixation - and make necessary course corrections. Secondly, try to keep things balanced and in harmony, and let running enhance, not rule your life.