Based on clinical studies, this list of proven things that make you dumber includes daily activities that affect your memory, ability to make decisions, learning ability, thinking capacity, self-control, reasoning, and overall brain functionality. In short, this is a list of stuff that makes you dumb.
1
Research from the Virginia Tech Carilion
Research Institute found that small-group dynamics - such as jury
deliberations, collective bargaining sessions, and cocktail parties -
can alter the expression of IQ in some susceptible people. "You may joke
about how committee meetings make you feel brain dead, but our findings
suggest that they may make you act brain dead as well," said Read
Montague, director of the Human Neuroimaging Laboratory and the
Computational Psychiatry Unit at the Virginia Tech Carilion Research
Institute, who led the study.
2
Using the Internet
Web use is affecting our ability to
remember things. No longer are we forced to rely on our memory for basic
info, we can just Google it. A Columbia University study
shows people have lower rates of recall of the information itself and
enhanced recall instead for where to access it. The internet has become a
primary form of external memory, where information is stored
collectively outside ourselves.
3
Being Obese
According to researchers at Carnegie
Mellon University, the brains of obese people work harder than those of
average-weight people to achieve the same results. The connections
between the brain parts responsible for memory and decision-making were
hyperactive in overweight people, but functioned normally in
average-weight people, says study author Timothy Verstynen, Ph.D., a
professor at Carnegie Mellon. High blood pressure and inflammation
irritate your brain’s communication systems, making it harder for
messages to come through, says Verstynen.
4
Not Getting Enough Sleep
An NIH study
shows that sleep deprivation effects cognitive performance, especially
memory consolidation, and activates the sympathetic nervous system,
which can lead to a rise of blood pressure. People who are exposed to
sleep loss usually experience a decline in cognitive performance and
changes in mood.
5
Staring at Your Facebook Profile
A study
published in the journal Media Psychology found that a brief exposure
to one's own profile raised self-esteem, but that prolonged viewing
hampered performance by decreasing one's motivation to perform well.
6
Eating Junk Food
Harvard research
shows what we eat has an impact on our ability to remember and our
likelihood of developing dementia as we age. Junk food or any foods loaded with saturated fat
raise blood levels of unhealthy low-density lipoprotein (LDL)
cholesterol. Other kinds of fats, such as trans fats, do the same thing
to LDL. LDL cholesterol builds up in, and damages, arteries. Diets high
in cholesterol and fat might speed up the formation of beta-amyloid
plaques in the brain. These sticky protein clusters are blamed for much
of the damage that occurs in the brains of people with Alzheimer's.
7
Shared Office Space, Poor Ventilation
The Department of Energy’s Lawrence
Berkeley National Laboratory (Berkeley Lab) have found that moderately
high indoor concentrations of carbon dioxide (CO2) can significantly
impair people’s decision-making performance. In test subjects, the most
dramatic declines in performance were for taking initiative and thinking
strategically. The primary source of indoor CO2 is humans. So, a lot of
people crammed in a small space produces too much Carbon Dioxide,
brains aren't getting as much oxygen as they need. So spread out or open
some windows to improve ventilation (and brain function).
8
Living in a City
Cities actually dull our thinking.
Scientists have begun to examine how the city affects the brain. Just
being in an urban environment impairs basic mental processes. After
spending a few minutes on a crowded city street, the brain is less able
to hold things in memory and suffers from reduced self-control.
9
Stories About Stupid People
Sorry, reality TV and tabloid fans. Research suggests
watching something dumb or reading about something dumb might make you
dumber. It's called media priming - the idea that the things we watch,
listen to or read influence our emotions and our behavior. So if
watching or reading about stupid people makes you dumb, imagine what
spending time with real-life stupid people can do.
10
Sugar
A UCLA study
is the first to show how a diet steadily high in fructose slows the
brain, hampering memory and learning - and how omega-3 fatty acids can
counteract the disruption.
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