An estimated 10–22 people per 100,000 per year have this disorder, which disproportionately affects women and youths. 3 FND can cause sudden tremors, tingling, paralysis, vision loss and seizures.

But, unlike these conditions, functional neurological symptoms aren’t due to damage or a disease process affecting the nervous system. This means the disorder doesn’t appear on routine brain ...

Biogen and Sage Therapeutics do not plan to conduct further studies for their neurological disorder drug after it failed in a mid-stage trial, the drugmakers said on Wednesday.