The Affordable Care Act (ACA) has increased health care access for adults with mental illness. The ACA improved access for those with moderate mental illness (MMI) and severe mental illness (SMI), reports a research letter in the October JAMA Psychiatry. An analysis of 2012 to 2015 data from a national sample of 77,095 adults, ages 18 to 64 (average age, 40.7), found that the number of uninsured people with no mental illness decreased by 6.2%, compared with an 8.5% drop in uninsured people with MMI and a 9.3% drop in uninsured people with SMI. Among those with SMI, the number who went without prescription drugs and without mental health care declined by 6.8% and 8%, respectively. Among those with MMI, the number who delayed medical care and who went without prescription drugs and without medical care fell by 4.5%, 3.6%, and 3.3%, respectively.