Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Social studies What is the difference between mental age and chronological age? Social studies. Ben Davis July 1, What is the difference between mental age and chronological age? When the mental age and chronological test is same what will be the IQ? How did Alfred Binet determine mental ages? Consider behaviors and learning tasks that a typical 1st grader displays: learning to read, basic addition, cooperative play and taking turns.
While he has the vocabulary and memory of a typical year-old, his ability to read body language and control impulses such as interrupting people or angry outbursts is more typical for a 6-year-old. Stevie is going to have a challenging time in school and in making friends. Think in different domains. For Stevie, his parents can expect him to use the language of a year-old.
Their behavior should reinforce, challenge and support his behavior in that domain. An important clarification is this adjustment of expectations is not done to convince them that Stevie cannot succeed in the future. Quite the opposite, in fact. Chronological age refers to the actual amount of time a person has been alive. The number of days, months, or years a person has been alive does not change , regardless of how healthy a lifestyle—even one filled with great exercise and nutrition habits—they are living.
Everyone ages at a different rate. Some people seem to age very rapidly, while others experience aging at a much more gradual pace. We've all experienced meeting someone for the first time who appears to be much younger—or older—than they really are. As humans, we have two different ages—chronological and biological. Chronological age is the number of years a person has been alive, while biological age refers to how old a person seems. Biological age, also referred to as physiological age, takes many lifestyle factors into consideration, including diet, exercise and sleeping habits, to name a few.
How we age is beyond our control. It's primarily influenced by genetics, but research sheds light on how aging can be impacted by external factors, including diet, exercise, stress , and smoking. Many gerontologists believe chronological age to be an incomplete figure because it doesn't take these external factors into consideration. Research suggests that telomeres and DNA methylation play big parts in the aging process.
Telomeres are the nucleotides on the ends of chromosomes. They keep the ends of chromosomes from deteriorating and fusing with a nearby chromosome. Essentially, telomeres dictate how quickly cells age and die. Scientists have discovered that the higher a person's chronological age, the shorter their telomeres. One study found that people with shorter telomeres were more likely to have an early death or develop a disease or neurodegenerative disorder.
Another study suggests that maintaining a healthy lifestyle can actually reverse aging by lengthening telomeres, good news for our age-obsessed culture. Scientists are also using DNA methylation to determine biological age.
Cells use DNA methylation to control gene expression. In other words, DNA methylation turns genes off. Although the exact purpose of methylation is unknown, it's vital to embryonic development, genomic imprinting, chromosome stability, and more. One study sought to discover whether DNA methylation is an accurate way of predicting age by gathering 8, samples of 51 different tissues and cells. Some didn't.
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