7 Things that lower your IQ
According to experts, everything from your eating habits to technology and ultimately modern life are badly affecting to your brain and lowering your IQ, making you slower, denser and less capable of original thought.
Recently, a study by the University of Montreal discovered that eating large amount of saturated fat can have an extremely influence on brain functions, damaging the neural circuits that govern motivation and even leading to a sort of addiction. Don’t be surprised if the below 7 things that you do every day can lower your IQ significantly.
1. Stress
Worrying about money or unfinished tasks, even being uncomfortable in a relationship can create “Stress Hormones”. According to Brendan Kelley – mental doctor in Columbus, Ohio, USA, a high level of stress is not only relevant with brain activities but also able to increase the risk of Alzheimer’s disease.
2. Obesity
A research published on American Journal of Epidemiology discovered that obesity in teenager can lead to ability to have a bad awareness and increase the chance of amnesia. The research pointed out a clear connection between obesity and bad awareness of teenager as well as adults. Therefore, many people today have more motivation to lose weight and maintain body weight reasonably.
3. Sugar
Sugar makes your waist much bigger and also lowers your IQ. Absorbing too much sugar can affect insulin’s ability to help brain cells convert sugar into energy for thought. Dr. Saran Brewer, a medical nutritionist, warns of the damage sweet things can do to your grey matter: “brain cells need glucose to function but too much in a short time will cause a sugar rush and make you feel over wired.
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4. Do lots of things at the same time
According to Earl Miller, an expert on divided attention and a neuroscientist at Massachusetts Institute of Technology says: “The brain is not wired to multitask. When people think they’re multitasking, they’re actually just switching from one task to another very rapidly and every time they do, there’s a cognitive cost.”It means the faster you use glucose (brain fuel), the quicker your mind exhausts and discombobulates. “Multitasking prevents deep, creative thought as we switch back and forth, backtracking, constantly starting from scratch each time. As a result, thoughts are less new and more superficial,” says Miller.
Just spotting an email mid-task is enough to lower your IQ by 10 points as your minds wander from the job. Miller mentioned that multitasking is the reason that speaking on the phone when driving is so dangerous. At that time, out limited cognitive capacity to multi-task means we can never fully focus on either job. Juggling many things at once floods the brain with cortisol (stress hormone0 and adrenalin (fight or flight hormone), which also prevents clear thought.
5. Play with smoking people
A passive smoker can be poisoned by toxic in the smoke. Approaching with smoke in a long time increases carbon monoxide, which occupies space of oxygen. As a result, blood vessels and neurons are injured and make a disruption in transmitting and saving information. So playing with smoking people can lower your IQ, even you don’t smoke.
6. Jet lag and other night – Time disruptions
Jet lag can make you foggy – headed after landing or even for a day, but in fact its effect can last for weeks. Studies on hamsters found that regular disruption to our internal circadian rhythm – our day-night pattern – halved the normal rate of new neuron birth in the hippocampus (the area of the brain dealing with memory processing) and the effects were still noticeable a month after the last “disruption”.
The hamster’s learning ability plummeted too. According to Professor Lance Kriegsfeld from the University of California at Berkeley, ‘What this says is that, whether you are a flight attendant, medical resident, or rotating shift worker, repeated disruption or circadian rhythms is likely going to have a long-term impact on your cognitive behavior and function.’ This is why jet lag also lower your IQ score.
7. Eat too much meat
This is a new discovering of English scientists which is published on December 2014. An experiment on body of over 8,170 people have shown that people with high IQ in childhood eat too much meat will lower their IQ score. Scientists recommend people who like eating meat should eat a little bit vegetables to protect health and IQ score.
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