Objective: The underlying changes in biological processes that are associated with reported changes in mental and physical health in response to meditation have not been systematically explored. We performed a randomized, controlled study on the effects on brain and immune function of a well-known and widely used 8-week clinical training program in mindfulness meditation applied in a work environment with healthy employees. Methods: We measured brain electrical activity before and immediately after, and then 4 months after an 8-week training program in mindfulness meditation. Twenty-five subjects were tested in the meditation group. A wait-list control group (N ϭ 16) was tested at the same points in time as the meditators. At the end of the 8-week period, subjects in both groups were vaccinated with influenza vaccine. Results: We report for the first time significant increases in left-sided anterior activation, a pattern previously associated with positive affect, in the meditators compared with the nonmeditators. We also found significant increases in antibody titers to influenza vaccine among subjects in the meditation compared with those in the wait-list control group. Finally, the magnitude of increase in left-sided activation predicted the magnitude of antibody titer rise to the vaccine. Conclusions: These findings demonstrate that a short program in mindfulness meditation produces demonstrable effects on brain and immune function. These findings suggest that meditation may change brain and immune function in positive ways and underscore the need for additional research.

No abstract

No abstract

In the past 20 years, mindfulness therapeutic programs have moved firmly into the mainstream of clinical practice and beyond. As they have, we have also seen the development of an increasingly vocal critique. At issue is often less whether or not these mindfulness practices "work," and more whether there is a danger in dissociating them from the ethical frameworks for which they were originally developed. Mindfulness, the argument goes, was never supposed to be about weight loss, better sex, helping children perform better in school, helping employees be more productive in the workplace, or even improving the functioning of anxious, depressed people. It was never supposed to be a merchandized commodity to be bought and sold. The larger clinical and religious community, however, has not always been troubled by the idea that meditation might sometimes be used as a highly pragmatic remedy for various ailments. Why, then, are people troubled now? This essay is an effort to recapture a bigger historical perspective on current ethical qualms: to move beyond criticism and instead to try to understand the anatomy of our discontent.

The flashlight fish, Photoblepharon , possesses headlight-like luminous organs situated in the orbit just below the eyes. On the basis of direct field and laboratory studies, it is postulated that the bioluminescence is used by the fish for many different functions: to assist in obtaining prey, to deter or escape predators, and for intraspecific communication. The fish also uses its light to see by.