Intelligance

An intelligence quotient (IQ) is a total score derived from a set of standardised tests or subtests designed to assess or to understand human intelligence. The abbreviation or term “IQ” was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in a 1912 book.

Overview

Historically, even before IQ tests were devised, there were attempts to classify people into intelligence categories by observing their behavior in daily life. Those other forms of behavioral observation are still important for validating classifications based primarily on test scores. Both intelligence classification by observation of behavior outside the testing room and classification by testing depend on the definition of “intelligence” used in a particular case and on the reliability and error of estimation in the classification procedure.

a six-year-old child who passed all the tasks usually passed by six-year-olds—but nothing beyond—would have a mental age that matched his chronological age, 6.0. (Fancher, 1985). Binet thought that intelligence was multifaceted, but came under the control of practical judgment. many factors are responsible for intelligence keep reading I will tell you everything about it.

Health for IQ determination

Since about 2010, researchers such as Eppig, Hassel, and MacKenzie have found a very close and consistent link between IQ scores and infectious diseases, especially in the infant and preschool populations and the mothers of these children. They have postulated that fighting infectious diseases strains the child’s metabolism and prevents full brain development. Hassel postulated that it is by far the most important factor in determining population IQ. However, they also found that subsequent factors such as good nutrition and regular quality schooling can offset early negative effects to some extent.

poor nations have averagely low intelligence quotient and in other hands developed nations have their own problem ,Developed nations have implemented several health policies regarding nutrients and toxins known to influence cognitive function. These include laws requiring fortification of certain food products and laws establishing safe levels of pollutants (e.g. lead, mercury, and organochlorides). Improvements in nutrition, and in public policy in general, have been implicated in worldwide IQ increases.

Brain anatomy

everal neurophysiological factors have been correlated with intelligence in humans, including the ratio of brain weight to body weight and the size, shape, and activity level of different parts of the brain. Specific features that may affect IQ include the size and shape of the frontal lobes, the amount of blood and chemical activity in the frontal lobes, the total amount of gray matter in the brain, the overall thickness of the cortex, and the glucose metabolic rate.

how to increase IQ

#1.The neuroscience is clear: aerobic exercise is extremely good for your brain. In fact, working out raises your IQ far more than playing an online brain game. Plus, a Swedish study proved that cardiovascular fitness can actually raise your verbal intelligence by 50%. Said Maria Aberg, who led the study, “Increased cardiovascular fitness was associated with better cognitive scores. In contrast, muscular strength was only weakly associated with intelligence.”

#2.

Countless studies find that meditating for as little as 20 minutes a day not only boosts your mood and lowers your stress levels, but also improves efficiency when it comes to deep cognitive processing. This is core to fluid intelligence, and part of what helps you become truly innovative.

If you replaced 20 minutes of surfing Facebook with 20 minutes of meditating using an app like Calm or HeadSpace, you’d get smarter and lose absolutely no value in your life.

#3.A study out of the University of Zurich showed that becoming proficient in a musical instrument can raise the IQ of both adults and children. We’re not talking about insignificant gains, either: the average IQ score in the United States is 98. Playing music can raise your IQ by 7 points or more–you could go from 98 to 105 just from learning how to strum Free Fallin’.

10 facts about mind

1.According to Paul Reber, Professor of Psychology at Northwestern University, the human mind can store an estimated 2,500,000 gigabytes. That’s equivalent to 300 years worth of TV shows. [Scientific American].

2.More than 100,000 chemical reactions take place in the head every second.

3.95% percent of all decisions take place in the subconscious mind. This means that the vast majority of our actions and behaviors occur due to brain activity that lies beyond our conscious awareness. [Science Daily]

The brain itself cannot feel pain

Although pain is processed in the brain, the organ itself cannot feel pain. This is why surgeries can occur while a patient is awake, without discomfort. [Time]

The list goes on and on. As more research is conducted, and we learn more about the human brain’s capabilities, we also learn how to keep our minds sharp. Find out how we recall memories and how the mind changes when.

5.Practicing recollection can help aid PTSD. There are a variety of psychological treatment methods that mental health care providers use to help those suffering from PTSD safely confront and cope with traumatic experiences.

6.The average mind has between 50,000 and 70,000 thoughts a day. Upsettingly, the majority (an estimated 60-70 percent) of the thoughts are negative. [Huffington Post]

7.Memories start forming in the womb, as this is a critical time for neurons development. Memory recall can occur as early as four months into pregnancy.

8.Vitamin B1 is essential to producing the brain chemical acetylcholine, which is needed for concentrating and storing memories. An Australian study revealed that those who consumed B1 supplements and folic acid for two years improved long and short-term memory. [Huffington Post]

9.Research shows that the average attention span has decreased by an average 12 minutes over the last 10 years. Today, the human attention span is shorter than a goldfish. [Time] Studies have even shown some links between device multi-tasking — for example, if you’re scrolling through social media while watching TV — and declining attention spans.

10.Neuroscientists have known for a long time that the hippocampus stores short-term memories. However, a recent study revealed that while short-term memories are formed in the hippocampus, they are simultaneously stored in another part of the brain for long-term memories.

Bonus

Did you know your cerebrum weights 3 pounds? Yep, all that knowledge, information and memory weighs less than your grandma’s dumbbells.

About 75 percent of the brain is comprised of water. Even slight dehydration can affect the way your brain operates. Drink up!

The brain will grow three times its size in your first year of life, but when you reach 18 years old, it stops.

It’s a myth that you use only 10 percent of your brain. You use all of it, even when you’re sleeping. In fact, during sleep, your brain waves are more active than when awake.

Speaking of sleep, your dreams are proof that the brain is always on the go. Dreams are considered a combination of neurological and psychological factors, as well as your imagination.

There are 100 BILLION neurons present in the head. That’s a billion tiny cells transmitting nerve impulses that tell you what to think, feel, see, hear and do. Crazy! What’s even nuttier is that those neurons can travel up to 250 miles per hour!

𝗘𝗺𝗽𝗼𝘄𝗲𝗿𝗯𝗿𝗮𝗶𝗻

3 ways to increase your IQ level| 2023