Studies show Violent
Television Weakens the Immune System
August 21st, 2005
In two separate studies there were
measurable effects of a weakened immune system by watching violence on
One study conducted by Duke
University reflected that there was an increase in heart rates and blood
pressure along with higher stress hormone levels. Originally published
in the Medical Tribune in April 2005 issue, the researchers of this
study believes that large amount of violence could be cause for major
Another study conducted by
researchers at Ohio State University found that good stress such as work
related was good for the immune system. They discovered that watching
violent television weakened the immune system.
These researchers measured 34
participants after performing memory tasks and after watching a violent
video. They analyzed saliva samples and measured the secretory
immunuglobulin A (SIgA) as well as the secretory component (SC). The
secretory immune system is the first defense system our body uses to
protect the pathogens from entering into tissue.
After the memory test the saliva
measured an increased concentration level of the SIgA. After watching
the violent video the SIgA concentration levels were lowered.
There was also a measurement of the
secretory component (SC) in both the memory task and the violent video
was increased. The researchers still believe that the since the lowered
levels of SIgA there is a definite measurable weakening of the immune
system from watching the violent television.
Secretory IgA (sIgA) and SC both are
important to the immune system and activate human eosinophils.
Secretory IgA does not cause inflammation and is an important immune
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