What did watson find
47% concordance in mz twins compares to 15% rin dz twins
What did Davillies find
72% of suffers had a family link
What is a problem with Davillies research
It was based on self reports
What did mercer find
sufferers overestimate how long it took them to get to sleep
What did Kales find
link with depression and anxiety
What did Cohen find
72% of sufferers has brain injuries
Whats a practical application
There are treatments
what is insomnia
the inability to sleep
what are the main explanations of insomnia
genetic predisposition, psychophysiological (learned/caused from stress), personality factors, hyperarousal, secondary insomnia