I-Search questions and sources

Main question:

Why are people of all ages afraid of the dark?

Sub-questions:

°What's in the dark that make people so afraid?

°What creates the fear, is it myths or is it intuition? 

°Is the fear of the dark psychological or biological? 

Sources: 

http://www.ted.com/conversations/6848/what_s_with_the_fear_of_darkne.html

http://phobias.about.com/od/phobiaslist/a/nyctophobia.htm

http://www.huffingtonpost.com/2012/08/29/fear-of-the-dark_n_1840014.html

Persistent fear and anxiety can affect young children's learning development by Harvard university