Do you know that too much watching of the television can be detrimental to your health especially your eyes?.
HIGH television viewing and low physical
activity in early and mid-adulthood may raise
the risk of poorer cognitive function later in
life, according to new research.
Watching too much TV – defined in the study
as at least four hours daily – between the
ages of 18 and 30 may lead to poorer
cognitive function in mid-life.
Study co-author Tina Hoang, of the Northern
California Institute of Research and Education
(NCIRE) in San Francisco, and colleagues
recently presented their findings at the 2015
Alzheimer’s Association International
Conference (AAIC) in Washington, DC.
The 2008 Physical Activity Guidelines for
Americans state that adults aged 18-64
should engage in at least 150 minutes of
moderate-intensity aerobic activity or 75
minutes of vigorous-intensity aerobic activity
each week. According to the Centers for
Disease Control and Prevention (CDC),
however, only around one in five adults meet
It is well established that lack of physical
activity and sedentary behavior can have
negative implications for health, such as
overweight and obesity, greater risk of type 2
diabetes and increased risk of cardiovascular
disease. Increasingly, research has suggested
such behavior may also adversely affect brain
Previous studies have shown physical activity
in later life may protect against cognitive
decline and dementia. However, Hoang and
colleagues note that little is known about the
role physical activity in early adulthood plays
in later-life brain function.
“Understanding this relationship in early
adulthood may be particularly important
because global data suggests that levels of
physical inactivity and sedentary behavior are
increasing,” says Hoang.
Physical activity in early, mid-adulthood
important for healthy cognitive ageing
The team’s study included more than 3,200
adults aged 18-30 who were part of the
Coronary Artery Risk Development in Young
Adults (CARDIA) Study.
Over 25 years, the researchers recorded
participants’ television viewing time and
physical activity levels via a minimum of three