Key points from article :
Diseases such as cancers, diabetes, and Alzheimer’s doesn’t have a strong genetic contribution.
May contribute up to 5 to 10 per cent at most.
Used two decades of data from studies that examine the relationships between gene mutations.
But Crohn’s disease and macular degeneration have a genetic contribution up to 50 per cent.
Risks for getting most diseases arise from metabolism, environment and lifestyle.
Research by University of Alberta, Published in PLOS ONE.
