Hacker News new | past | comments | ask | show | jobs | submit login

It wasn't my intention to train my brain but I started using DuoLingo (it's free) language learning and I find my concentration has improved.

Maybe it's just because I do a different activity at a regular rate per day but I do feel brainy plus I am learning three languages.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: