A stock image of an woman standing at sink and looking at her reflection. Getting older is inevitable, and aging is often linked to visible signs like gray hair and wrinkles. But long before those appear, subtle internal changes can begin as early as age 30-often without people realizing it. According to a 2017 West Health Institute/NORC survey on Aging in America, Americans as young as 30 already worry about memory problems, financial and health issues, and losing their independence.