Talking to toddlers can help advance early brain development, scientists have found. Researchers from the University of East Anglia (UEA) discovered that two-and-a-half-year-olds who heard more speech in everyday life had more myelin – a substance that makes brain signals more efficient – in language-related areas of their brains. The researchers said their findings, published in the Journal of Neuroscience, demonstrate how talking to toddlers can shape their developing brain. Lead researcher Prof John Spencer, from UEA’s School of Psychology, said: “We know that children’s brains develop very rapidly in the first two years of life, with brain volume at about 80% that of an adult brain by the age of two. The message to caregivers is clear - talk to your baby, your toddler, your child. Not only are they listening, but your language input is literally shaping their brains Prof John Spencer “Myelin is made up of protein and fatty substances and forms an insulating layer around nerves in the brain.” He added: “Imagine you have a hosepipe with lots of holes in it. “Myelin is like wrapping the hosepipe with duct tape – it insulates neural fibres, bringing more of the ‘signal’ from one brain area to the next.” For the study, the researchers gave 163 babies and toddlers small recording devices to wear for three days. They analysed just over 6,000 hours of language data in total, which included words spoken by the children as well as speech from adults. When the children were asleep, the researchers carefully placed them in an MRI scanner to measure myelin in their brains. Prof Spencer said: “What we found is that the toddlers who heard more speech in their everyday environment also had more myelin, which is likely to support more sophisticated language processing. “In other words – talking to your kids is very important in early development as it helps to shape the brain.” The researchers said their study is one of the first to show that listening to speech is associated with brain structure early in development. Prof Spencer said: “Prior work showed a similar association in four to six-year-olds, but our findings push this association much earlier in development. “Indeed, we even found associations between language input and brain structure in six-month-old infants.” He added: “Although there is still much more to learn about these processes, the message to caregivers is clear – talk to your baby, your toddler, your child. “Not only are they listening, but your language input is literally shaping their brains.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Is your child too anxious to go to school? What’s the link between the menopause and anxiety? How to encourage green-fingered kids

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