Best Mental Fitness Newsletters in 2026

NewsletterFIT tracks 4 newsletters that cover Mental fitness as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are The Looking Glass (95K).

Updated Nov 6, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    The Looking Glass95K subscribers

    SubstackEvery two weeks · last post 23 days ago

    Essays on the endless journey of building products, teams, and ourselves.

    Likely audience: Product managers

  2. 2
    The Growth Compass—

    beehiivSeveral times a week · last post 11 days ago

    Build the mindset, leadership, and teamwork skills to win in just 3 minutes. Used by coaches to lead better, athletes to perform better, and teams to grow stronger.

    Likely audience: Leadership coaches

  3. 3
    Better Questions: Timeless Wisdom, Modern Mind—

    SubstackEvery two weeks · last post 19 days ago

    Exploring the space between who we are and who we’re becoming—via reflections, mental fitness tools, and my ongoing series of rare interviews with ancient teachers and timeless minds.

    Likely audience: self-improvement enthusiasts

  4. 4
    Holistic Pharmacy Trends—

    LinkedInMonthly or less · last post 18 days ago

    Sharing the Holistic + Integrative view of health and application in the modern healthcare paradigm

    Likely audience: Pharmacists

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