Feed your brain

The many cognitive benefits of learning languages are undeniable. People who speak more than one language have improved memory, problem-solving and critical thinking skills, enhanced concentration, ability to multitask, and better listening skills. They switch between competing tasks and monitor changes in their environment more easily than people who speak only one language, as well as display signs of greater creativity and flexibility.

If that's not enough, as we age, being bilingual or multilingual also helps to stop mental aging and cognitive decline.