Now, Share Your Opinion Genetic testing now makes it possible to learn about predisposition to diseases like cancer, heart disease, Alzheimer's disease and others. But having a gene doesn't necessarily mean you're "sick." Predisposition to a genetic disease gives you a percentage chance of developing a certain disease. In some cases, the chance could be 50 to 90 percent -- meaning that you may never get the disease, but your risk is greater than that of the general population. How will that knowledge affect individuals and their families? Some say it will have a positive effect -- knowing that you may one day develop heart disease could give you the opportunity to make lifestyle changes now that could decrease your risk. Others think the idea of "looking into the future" can be emotionally draining. Detractors also worry about insurance or employment discrimination in cases where a test comes back positive. What do you think? Would you want to undergo genetic testing to learn if you were predisposed to a disease for which there is no treatment or cure? Click on your choice to submit -- you'll see your vote added to the current standings -- or: Show me the current standings first Let me see what the experts say Let me see what other viewers say I'd like to add a comment