Adolescence is widely thought to be a time when the brain trims away excess neural connections, refining circuits through synaptic pruning. New research now suggests this view may be incomplete.

For decades, my colleagues and I advanced the premise that early substance use—nicotine, alcohol, or cannabis (or other addicting drugs)—interferes with critical maturation stages, particularly ...

Children exposed to high levels of screen time before age 2 showed changes in brain development that were linked to slower decision-making and increased anxiety by their teenage years, according to ...

A study of more than 11,000 teens finds cannabis use tied to slower gains in memory, focus and thinking speed as well as ...

For decades, my colleagues and I advanced the premise that early substance use—nicotine, alcohol, or cannabis (or other addicting drugs)—interferes with critical maturation stages, particularly ...

That viral claim that your frontal lobe “isn’t fully developed until 25” turns out to be more myth than milestone. Early brain scans showed that gray matter changes dramatically through the teen years ...

Scientists have discovered that the adolescent brain does more than prune old connections. During the teen years, it actively builds dense new clusters of synapses in specific parts of neurons. These ...

Before age 5, a baby's brain grows rapidly, undergoing a uniquely important moment in development. Yet, many don't understand just how critical it is for setting a person's foundation for thriving.

In a bid to better understand, and potentially treat, a host of conditions that affect early cognition, neurodevelopment, and the brain later in life, investigators at Johns Hopkins Medicine and ...

Researchers at the Icahn School of Medicine at Mount Sinai report that early-life exposure to common environmental metals may ...