How to get smarter, one breath at a time
Time Magazine
Posted Tuesday, Jan. 10, 2006
At 4:30, when most of Wall Street is winding down, Walter Zimmermann begins
a high-stakes, high-wire act conducted live before a paying audience. About
200 institutional investors—including airlines and oil companies—shell out
up to $3,000 a month to catch his daily webcast on the volatile energy
markets, a performance that can move hundreds of millions of dollars. "I'm
not paid to be wrong—I can tell you that," Zimmermann says. But as he clicks
through dozens of screens and graphics on three computers, he's the picture
of focused calm. Zimmermann, 54, watched most of his peers in energy futures
burn out long ago. He attributes his brain's enduring sharpness not to an
intravenous espresso drip but to 40 minutes of meditation each morning and
evening. The practice, he says, helps him maintain the clarity he needs for
quick, insightful analysis—even approaching happy hour. "Meditation," he
says, "is my secret weapon."
Everyone around the water cooler knows that meditation reduces stress.
But with the aid of advanced brain scanning technology, researchers are
beginning to show that meditation directly affects the function and
structure of the brain, changing it in ways that appear to increase
attention span, sharpen focus and improve memory.
One recent study found evidence that the daily practice of meditation
thickened the parts of the brain's cerebral cortex responsible for decision
making, attention and memory. Sara Lazar, a research scientist at
Massachusetts General Hospital, presented preliminary results last November
that showed that the gray matter of 20 men and women who meditated for just
40 minutes a day was thicker than that of people who did not. Unlike in
previous studies focusing on Buddhist monks, the subjects were Boston-area
workers practicing a Western-style of meditation called mindfulness or
insight meditation. "We showed for the first time that you don't have to do
it all day for similar results," says Lazar. What's more, her research
suggests that meditation may slow the natural thinning of that section of
the cortex that occurs with age.
The forms of meditation Lazar and other scientists are studying involve
focusing on an image or sound or on one's breathing. Though deceptively
simple, the practice seems to exercise the parts of the brain that help us
pay attention. "Attention is the key to learning, and meditation helps you
voluntarily regulate it," says Richard Davidson, director of the Laboratory
for Affective Neuroscience at the University of Wisconsin. Since 1992, he
has collaborated with the Dalai Lama to study the brains of Tibetan monks,
whom he calls "the Olympic athletes of meditation." Using caps with
electrical sensors placed on the monks' heads, Davidson has picked up
unusually powerful gamma waves that are better synchronized in the Tibetans
than they are in novice meditators. Studies have linked this gamma-wave
synchrony to increased awareness.
Many people who meditate claim the practice restores their energy,
allowing them to perform better at tasks that require attention and
concentration. If so, wouldn't a midday nap work just as well? No, says
Bruce O'Hara, associate professor of biology at the University of Kentucky.
In a study to be published this year, he had college students either
meditate, sleep or watch TV. Then he tested them for what psychologists call
psychomotor vigilance, asking them to hit a button when a light flashed on a
screen. Those who had been taught to meditate performed 10% better—"a huge
jump, statistically speaking," says O'Hara. Those who snoozed did
significantly worse. "What it means," O'Hara theorizes, "is that meditation
may restore synapses, much like sleep but without the initial grogginess."
Not surprisingly, given those results, a growing number of
corporations—including Deutsche Bank, Google and Hughes Aircraft—offer
meditation classes to their workers. Jeffrey Abramson, CEO of Tower Co., a
Washington-based development firm, says 75% of his staff attend free classes
in transcendental meditation. Making employees sharper is only one benefit;
studies say meditation also improves productivity, in large part by
preventing stress-related illness and reducing absenteeism.
Another benefit for employers: meditation seems to help regulate
emotions, which in turn helps people get along. "One of the most important
domains meditation acts upon is emotional intelligence—a set of skills far
more consequential for life success than cognitive intelligence," says
Davidson. So, for a New Year's resolution that can pay big dividends at home
and at the office, try this: just breathe.