Different parts of the nail matrix contribute differently to nail thickness
Studies indicate about 79 % of the thickness of the nail plate comes from the nail matrix, while the remaining 21 % is contributed by the nail bed — overturning the notion
Selective mutism is a real thing. It's an involuntary anxious response, meaning most of the times the person WANTS to speak but cant! In relaxed situations they can even be super chatty!
An erection is a vascular process where the corpora cavernosa fill with blood, increasing in length and thickness, often initiated by the parasympathetic nervous system.
