1. One of the benefits of learning a second language is that it can help make you smarter
Well, yes, but no. While intelligence is a broad topic, there are no studies that suggest that speaking two languages actually makes you more intelligent. However, studies have shown that speaking two languages makes our brains work harder and uses more cognitive processes.1✅ JOURNAL REFERENCE
DOI: 10.1038/nrn37092✅ JOURNAL REFERENCE
So how does it work? Speaking two languages exercises our brains and can help make them more efficient.