Disclaimer: This contains science related subject matter from various sources, however (despite studying bachelors in biology) I am not a doctor or an expert in this area. The evidence for this has been obtained from reliable sources.
When someone finds out that I'm diabetic, often the first question they ask is: 'Type1 or Type 2?' with my response being type 1. Following this they often attempt to console me with comments like 'oh right so it wasn't your fault' or 'so you inherited it?'. Sometimes feel quite offended when I hear this, with a lot of people assuming that type 1 is primarily uncontrollably inherited and type 2 being a disease that is purely due to lifestyle, when this isn't true.
Many consider the rise in the number of type-2 diabetics as a result of an increase in seditary and glutinous lifestyle throughout the population i.e. less exercise and higher food consumption. Although there is a degree of truth to this, the whole truth may not have been as publicly explained.
The obesity epidemic which is thought to parallel the rise in diabetes helps predict that the number of diabetics will rise from 171million to 366 million in 2030! That's crazy numbers!
Despite having stated that type-2 diabetes has a strong genetic reliance, the mechanism by which this occurs still remains fairly elusive. However there are a number of gene candidates that contribute to a multifaceted genetic picture. Type-2 diabetes has a wealth of evidence to support its genetic origin, some argue, even more so than type-1 diabetes:
Main source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1526773/
Lots of people will have some thought on particular disease's and possibly even attribute some individual blame, but no one really deserves disease… it just happens! The most important thing is dealing with the aftermath!! (Wow…can't believe I'm going to leave that last bit in)
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