[fexecve]

> There is research [1] that suggests using GPS navigation could impact your brain function negatively.

Wrong, that research only shows that when you use a GPS, you don't learn routes as quickly. That is only equal to "impacts brain function negatively" in a narrow sense, which you should specify rather than use such a broad and scary-sounding phrase!

[geraneum]

> … could impact your brain function negatively.

Brain function being negatively impacted is not scary on its own and not necessarily permanent.

I didn’t mean to scare you. It’s likely you are confusing the above phrase with “your brain will be altered forever” which is not what it means.

[fexecve]

Who said I was scared? I'm just pointing out that the phrase you used it very vague and some interpretations can be scary. It pays to be specific, especially in tech and medicine, you know? Winkyface.