Fluency in a foreign language is often thought to be about speaking quickly and using advanced vocabulary. However, researchers from Waseda University reveal that speakers who use common, everyday expressions sound more fluent than those who rely on rare, complex words. The study highlights the importance of mastering familiar phrases to improve fluency perception, suggesting that learners should naturally incorporate common formulaic expressions in spontaneous speech.

Nanomedicine is revolutionizing cancer treatment through precise drug delivery and advanced therapies, but clinical translation requires scalable solutions. Researchers in Japan have developed bacteria-enhanced graphene oxide nanoparticles that integrate chemotherapy, photothermal therapy, and immune activation, effectively suppressing tumors in mice. When combined with laser treatment, they achieved complete tumor eradication. This advancement offers a scalable, targeted approach, addressing the limitations of traditional therapies and paving the way for more effective cancer treatments.