Yes. However, there is heavy debate over exactly how IQ and intelligence change with age. Studies have demonstrated that a person's fluid intelligence tends to decrease starting in their late 20s, while their crystallized intelligence tends to increase as they grow older.
Intelligence is often thought to be fixed across the lifespan, and IQ scores are used to sort children and adolescents for educational purposes. But in fact, IQ fluctuates, and individuals can be trained to perform better on IQ tests, indicating that sorting on this basis may not serve any useful purpose.
IQ tends, on average, to remain remarkably constant throughout life, starting after infancy and lasting until old age, when there are often declines (starting roughly 10 years before death).
For any given individual, the change in IQ score changed from -20 to +23 for verbal IQ and -28- to +17 for non-verbal IQ. Correlation analysis revealed that increases in IQ were associated with increased in cortical density and volume for brain regions involved in verbal and movement functions.
Elon's IQ is estimated to be around 155, while Albert Einstein's is 160. With such a slight margin, Musk is undoubtedly an incredibly smart person. Who is the smartest person on earth in 2022? Born in 1975 in Adelaide, Australia is a mathematician, Terence Tao with an IQ score of 230.
Please note: It is important to be aware that IQ scores do not tend to stabilize, meaning stay the same, until around age 7 or 8 (around the third grade). Therefore, if your child is tested in pre-school or early elementary school, the score may not remain stable through grade school.
IQ peaks and stops increasing at around 20 years of age and then is mostly fixed for life. IQ peaks at around 20-years-old and later effort will not improve it much beyond this point, research finds.
Interestingly, there was no significant correlation between stress and IQ, although stress was significantly correlated with EI and EI was significantly correlated with IQ. The correlations between stress and EI.
The takeaway:
Your individual IQ will not change as you age, but on average our intelligence does decrease with age.
These days, most reputable IQ tests or psychologists will openly admit that IQ is not a complete measure of how smart you are. These tests do not tell you, nor are they intended to tell you, your overall cognitive prowess.
Stress. A recent theory suggests that early childhood stress may affect the developing brain and cause negative effects. Exposure to violence in childhood has been associated with lower school grades and lower IQ in children of all races.
But genetics can explain the wide range of possible IQs too because so many different genes are involved in developing and running a brain. It is possible, for example, to inherit all the higher IQ genes from each parent and leave the lower IQ ones behind. Now the child will be brighter than the parent.
Like most aspects of human behavior and cognition, intelligence is a complex trait that is influenced by both genetic and environmental factors.
One possibility is that the genes associated with intelligence also make you more prone to mental illness, but intelligence doesn't directly increase your risk of mental illness. Another possibility is that people with higher IQs are often more socially isolated, which leads to more anxiety and depression.
Relatively high anxiety in patients with GAD predicted high IQ whereas relatively low anxiety in controls also predicted high IQ. That is, the relationship between anxiety and intelligence was positive in GAD patients but inverse in healthy volunteers.
However, there is also a lot of research that shows that depression actively leads to a detrimental development of the frontal lobe, ultimately affecting your intelligence and lowering your IQ because you're simply too depressed to think straight, or can't complete certain cognitive tasks anymore.
mental age, intelligence test score, expressed as the chronological age for which a given level of performance is average or typical. An individual's mental age is then divided by his chronological age and multiplied by 100, yielding an intelligence quotient (IQ).
The average score for people between 20 and 24 years of age is 99, which also denotes normal or average intelligence. For people between 24 and 34 years of age, the average score is slightly lower at 97, which still denotes normal or average intelligence.
One of the best ways to improve verbal ability is by using the words, phrases and expressions they learn in a new word a day practice. Encourage your children to incorporate them into a discussion with someone else or their writing practices. The more they use the new words, the easier they are to remember.