Wellness exists on a continuum and is unique to each individual person. Each of us defines our own wellness. It's a unique thing based on our individual circumstances. And wellness in this view is also seen as a holistic concept. It's looking at the whole person and not just at your blood pressure level or how much you weigh, or how well you manage your stress. It's not one thing; it's all of these things connected. Wellness involves the spiritual, the body, the mind, and the concept dimensions. 
--Carla Culley, Research & Training Center on Health,
Wellness, & Disability
Oregon Health Sciences University
http://www.healthwellness.org/

Brief meditation boosts attention and curbs stress. After just five days, subjects who meditated showed significantly greater improvement on tests of attention and mood than did the control group.

(Reuters: PNAS Early Edition 2007)