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    Free University Courses

    Audit world-class classes free.

    Coursera

    FREE audit / $40-80/mo

    7,000+ courses from Yale, Stanford, etc. Audit free. Pay for certificates.

    Best overall.

    edX

    FREE audit / $50-300 verified

    MIT + Harvard courses. Free to audit.

    Best academic.

    Khan Academy

    FREE

    World-class. Math, science, economics, art history.

    Best truly free.

    OpenCourseWare (MIT)

    FREE

    Real MIT lecture notes + videos free.

    Best for science.

    Senior Audit programs

    FREE for seniors

    Most US public universities let 60+ audit FREE in-person classes.

    Best for in-person.

    Road Scholar (Elderhostel)

    $2,000-5,000/trip

    Travel + learning programs designed for 50+. Tours + classes.

    Best for travel learning.

    Lifelong Learning Institutes (OLLI)

    $50-300/yr

    Many universities have OLLI for seniors — peer-led, in-person classes.

    Best community.

    Free in-person at YOUR state university

    • Most public universities let seniors AUDIT classes free.
    • "Audit" = sit in, do reading, no grades, no credit.
    • Texas — 65+ FREE 6 credit hours per semester.
    • Florida — 60+ FREE up to 12 credit hours per semester.
    • California, NY, Ohio, Michigan, more — same idea, varies.
    • Search "[your state] senior audit program".

    OLLI programs

    • Osher Lifelong Learning Institute. 124 university campuses.
    • $50-300/year. Take many classes per term.
    • Peer-taught. Topics: history, lit, art, science, current events.
    • Includes social events, lectures, trips.
    • Best community for retirees who want intellectual life + friends.
    • Find: osherfoundation.org.

    Best courses to start

    • Coursera — "Yale Science of Well-Being". Free. Most popular online course ever.
    • edX — "Justice" (Michael Sandel, Harvard). Free, classic.
    • Khan Academy — World History. Free, well-paced.
    • Coursera — Greek & Roman Mythology. Free, popular.
    • YouTube — CrashCourse. Free 10-min videos on any subject.

    Cognitive benefit

    Engaging in challenging learning is the strongest evidence-based protection against dementia. 1-2 hours/week of real learning across 5+ years measurably reduces risk. Pick a subject you love. Start.