Teenagers who binge drink may be putting themselves at risk of depression or anxiety in later life, research suggests.

Apparently rats exposed to binge drinking experienced a change in their brain chemistry which "might lead to behavioural disorders in adulthood," researchers said.

Obviously that's still quite a big "might" in there and what were the rats doing binge drinking anyway?

Moving on, and people who stutter show changes in brain chemistry even when listening or reading, a study suggests.

More research is needed to establish whether changes in brain chemistry are the result of a lifetime of stuttering or a cause of it.