The differences were linked to the mental alertness required to switch between languages, which could develop skills useful in other types of thinking.
Given the fact that marital problems are one of the most common reasons for seeking mental help, according to the study, understanding the sex differences in marital happiness is especially important.
Still, the results are expected to shed light on the sometimes subtle differences in effectiveness and side effects among various treatments for schizophrenia, a disabling mental illness marked by hallucinations, delusions and numbed emotions.