The handwriting was neat, unlike my illegible scribbles. Sitting down on my chair, I began reading the letter.

“The human body, our organs, how hard it works just to have us surviving. Fascinating, isn’t it? You should remember to stay healthy and not overwork yourself too hard. I bet you’re slouching right now, Aleisha!”

I immediately shot right up from my comfortable sitting position… Hmm…

First off, how did Aleisha – whoever she is – know I was slouching?
Secondly… I shouldn’t be slouching… Or should I? It feels natural, but I don’t know enough. Is it bad for my body?