British researchers said they were stunned to discover that people get
more of a buzz from eating chocolate than passionately kissing their
"These results really surprised and intrigued us," said psychologist
David Lewis, who led a study that recorded brain activity and heart rate
from volunteers who tasted pieces of dark chocolate or kissed their
"There is no doubt that chocolate beats kissing hands down when it
comes to providing a long-lasting body and brain buzz -- a buzz that, in
many cases, lasted four times as long as the most passionate kiss."
While researchers expected chocolate, especially dark chocolate, to
raise heart rates, he said, "both the length of this increase together
with the powerful effects it had on the mind were something none of us had
The 12 volunteers, all aged in their 20s, wore heart monitors and had
electrodes attached to their heads as each placed a piece of dark
chocolate on the tongue and, without chewing, indicated when it started to
Couples were later invited to kiss each other in the same way as they
would do normally.
The study found that -- at the point chocolate melts in the mouth --
all areas of the brain are stimulated far more intensely and for longer
than from kissing.
Chocolate also made the heart beat faster, according to the study
supervised by Lewis, a formerly University of Sussex psychologist who now
runs a private research company called The Mind Lab.
Some people saw the number of heart beats per minute rise from a
resting rate of about 60 to as high as 140. Kissing also made the couples'
hearts pound, but not for as long.
Both sexes showed the same responses in the tests.