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Does Age Affect Your IQ ?
Studies indicate that IQ increases gradually from childhood until they reach early adulthood. After approximately 27 years of age IQ then starts decreasing. The exact reasons for this are still unclear and hotly debated among scientists.
Some scientists argue that due to the expanding brain capability till early adulthood information can be more easily stored and processed by the brain resulting in improved IQ. After 27 years of age this capability starts reducing due to some reasons although scientists have not been able to pin point a single reason for this phenomenon.
Experts argue that as people age they start developing perception problems that have an impact on their ability to do well on intelligence tests. Tests conducted indicate that subtle differences in sensitivity that happen with ageing can reduce IQ scores significantly.
Perception problems happen in adults as they age and can reach problem levels in some adults when they get close to 70 years of age. Ageing affects the way in which people recognize symbols and perceive problems.
Researchers have found that coding patterns in the brain (the way in which brain processes and responds to information and external stimuli) change over time affecting a personís response to external stimulations.
These perception problems affect their ability to respond to various questions causing a reduction in IQ scores. Studies conducted so far have not been able to concretely establish whether life style changes or any other factors can help people retain their IQ into their old age.
It is also unclear whether the reduced functioning of any particular body organ (for example reduced eye sight or reduced hearing) can cause a significant reduction in IQ although it is widely believed to have an impact as well as environmental factors such as stress, poor health and lack of cognitive exercises.