Do Twins Talk Later? Scientists Say Yes

  • By: Maya
  • Date: April 3, 2022
  • Time to read: 3 min.

Twin studies are important for understanding how language develops. They can help us to understand language changes over time, the role of genetics in shaping language, and how environmental influences impact language development.

What the Studies Found:

Twin studies have been used to study a wide range of topics, including second language acquisition, bilingualism, and Down syndrome. Researchers use twins because they provide a unique opportunity to compare two individuals who are genetically identical but may experience different environments.

In general, research has found that twins talk later than single siblings. This is likely due to the fact that twin pairs share more experiences and learn from each other more effectively than single siblings do. This is why twin studies are so important for understanding how language develops.

Why Do Twins Talk Later?

Recent studies have shown that twins may talk later than other people and this could be due to their unique connection. Twin brothers and sisters share 100 percent of their DNA so they are more likely to have similar thoughts, emotions, and behavior. In fact, twin studies have shown that twins talk more than any other family type. 

One study looked at how often different family types communicate with each other. They found that twins talk the most with their siblings, followed by parents and children. The study also found that when it comes to talking with others, the earlier in life the interaction occurs, the more likely it is to lead to a healthy relationship. 

This might be because early communication teaches kids how to share and negotiate peacefully disagreements. It also helps them understand why people think and feel the way they do.

When Do Normal People Start to Talk?

Normal people start talking around 18 months old. Twins talk about the same things and at the same age, it’s considered a sign of development. However, some twins may not start talking until they are 2 years old or later. Some twins delay talking because they are trying to figure out what is expected of them and they don’t want to disappoint their parents or guardians. Other twins may not start talking because they feel shy or different than other children their age.

Does Talking Later Affect the Brain?

Talking later may not affect the brain as much as people think. A study at the University of Utah found that adults who talk later in the day do not have differences in cognitive function or memory compared to those who talk earlier in the day. The study participants were asked to complete a questionnaire about their daily activities and then took a test that measured working memory and verbal fluency. Surprisingly, there was no difference between the groups’ results. This suggests that talking later in the day does not have negative effects on the brain.


In conclusion, the study found that twins do talk later than other siblings. However, the difference is minor and should not be cause for concern. Twins are still able to develop language skills at the same rate as other children. Parents should continue to talk with their twins and engage them in conversation, as this is the best way to help them develop their language skills.

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