There are both disadvantages and advantages of being a thin and fat client. Health reason can be an advantage for a thin client and a disadvantage for a fat client. Body temperature can be a disadvantage for a thin client and an advantage for a fat client.

Read the Thin Client and the Fat Client Article in Wikiperia.org English Web Site:

http://en.wikipedia.org/wiki/Thin_client

Thin client, fat client and hybrid client all refer to a person's computer work station. A thin client usually is able to only show pictures from a server.

40 lbs

My first suspicion would be a gallstone, which obstructs the flow of bile, which is necessary for the digestion of fat.