The individual health insurance market is not a viable option for the majority of uninsured adults, according to this new Commonwealth Fund analysis. Seventy-three percent of people who tried to buy insurance on their own in the last three years did not purchase a policy, primarily because premiums were too high. An associated video looks at how people contending with the individual insurance market would benefit from the creation of a national health insurance exchange, through which a choice of affordable insurance plans with standard benefits and nondiscriminatory practices would be available.