You shuffle through the papers of the scientist...
There's a journal in here.
You open the journal, and cough at the smell of formaldehyde and dust that enters your lungs.
It's... a textbook?
Honestly... You've seen weirder things in this house.
FEAR 101: The Intro Course
Reasons Why People Feel Fear
Fear is evolutionary, and helped people to survive back in the days before... well... everything. Everything besides death, that is.
How Did Fear Help People to Survive?
Fear allowed early humans to avoid the things that may have harmed them.