Researchers
say merely anticipating a laugh can jump‑start healthy changes in the body.
The
findings come from a small study, made up of 16 healthy men. The men were
divided into two groups. The experimental group was told to anticipate
something funny. The other group was used as a comparison.
Researchers
then tested the levels of three stress hormones participants had in their blood
and compared that to the control group, which did not expect a laugh was on the
way.
Researchers
found that the group anticipating the laughs had reduced levels of three stress
hormones compared to the other group.
Here's
the breakdown from the experimental group.
$ Cortisol levels dipped 39%. Cortisol is
known as a major stress hormone.
$ Adrenaline levels dropped 70%.
Adrenaline is also known as epinephrine.
$ Dopac levels dropped 38%. Dopac is a
chemical related to the "feel‑good" chemical known as dopamine.
Persistently
elevated stress hormone levels in the blood, as happens under chronic stressful
situations, has been linked to a weakened immune system.
"Our
findings lead us to believe that by seeking out positive experiences that make
us laugh we can do a lot with our physiology to stay well," says
researcher Lee Berk in a news release.
The
researchers were following up on a similar study they did two years ago in
which they found that anticipating laughter led to an increase in healthful
chemicals such as beta‑endorphins.
"Laugh and whole world laughs with you."
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