原本
Connective tissue disorder - which causes extreme fatigue and other health issues - is hereditary. Read about Elvis and his grandmother and their preference for lying down here:
http://invisibleillnessforum.com/index.php?topic=39.0
The description "lazy" reminded me of Elvis's mother:
Gladys's sister Lillian Reported Gladys to always be "lazy as a hog" And shirking her housework but she could rise to the occasion'.