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Physiological Aspects (Counseling & Psychology, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Physiological Aspects (Counseling & Psychology, Kindle eBooks), updated Nov 2, 2026: median price $9.48, median 102 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).

21Opportunity / 100
$9.48Median price
102Median reviews
Price range (middle 50%)$2.99 – $11.24
Average rating4.5
New releases (90 days)6%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 2% of the parent category Counseling & Psychology (5,920), one of the easier corners under it.
  • Prices spread wide: the middle half runs from $2.99 to $11.24, so budget editions and premium or boxed sets sell side by side.

Top 10 Physiological Aspects best sellers

  1. Grunt: The Curious Science of Humans at War book cover by Mary Roach

    Grunt: The Curious Science of Humans at War

    by Mary Roach

    • List rank#1
    • Price$11.99
    • Rating4.4
    • Reviews4,040

    View on Amazon · Full data on KDPTop

  2. Anchored: How to Befriend Your Nervous System Using Polyvagal Theory book cover by Deborah A.  Dana

    Anchored: How to Befriend Your Nervous System Using Polyvagal Theory

    by Deborah A. Dana

    • List rank#2
    • Price$12.99
    • Rating4.6
    • Reviews1,042

    View on Amazon · Full data on KDPTop

  3. Power vs. Force: The Hidden Determinants of Human Behavior book cover by David R. Hawkins MD/PHD

    Power vs. Force: The Hidden Determinants of Human Behavior

    by David R. Hawkins MD/PHD

    • List rank#3
    • Price$10.99
    • Rating4.7
    • Reviews6,950

    View on Amazon · Full data on KDPTop

  4. Six-Minute X-Ray: Rapid Behavior Profiling book cover by Chase Hughes

    Six-Minute X-Ray: Rapid Behavior Profiling

    by Chase Hughes

    • List rank#4
    • Price$9.99
    • Rating4.7
    • Reviews2,131

    View on Amazon · Full data on KDPTop

  5. The Mind-Gut Connection: How the Hidden Conversation Within Our Bodies Impacts Our Mood, O book cover by Emeran Mayer

    The Mind-Gut Connection: How the Hidden Conversation Within Our Bodies Impacts Our Mood, Our Choices, and Our Overall Health — A Health Guide

    by Emeran Mayer

    • List rank#5
    • Price$10.99
    • Rating4.5
    • Reviews4,125

    View on Amazon · Full data on KDPTop

  6. Change Your Brain, Change Your Life (Revised and Expanded): The Breakthrough Program for C book cover by Daniel G. Amen M.D.

    Change Your Brain, Change Your Life (Revised and Expanded): The Breakthrough Program for Conquering Anxiety, Depression, Obsessiveness, Lack of Focus, Anger, and Memory Problems

    by Daniel G. Amen M.D.

    • List rank#6
    • Price$9.99
    • Rating4.5
    • Reviews5,485

    View on Amazon · Full data on KDPTop

  7. Unthinkable: An Extraordinary Journey Through the World's Strangest Brains book cover by Helen Thomson

    Unthinkable: An Extraordinary Journey Through the World's Strangest Brains

    by Helen Thomson

    • List rank#7
    • Price$2.99
    • Rating4.3
    • Reviews978

    View on Amazon · Full data on KDPTop

  8. The DOSE Effect: An Inspiring Self-Healing Guide About the Mind-Body-Hormonal Connection,  book cover by Tj Power

    The DOSE Effect: An Inspiring Self-Healing Guide About the Mind-Body-Hormonal Connection, Achieve Wellness and Happiness with Practical Techniques!

    by Tj Power

    • List rank#8
    • Price$16.99
    • Rating4.6
    • Reviews1,120

    View on Amazon · Full data on KDPTop

  9. How Are You Alive?: A Practical, Unfiltered Guide to Surviving Depression, Finding Joy, an book cover by Scott Nelowet

    How Are You Alive?: A Practical, Unfiltered Guide to Surviving Depression, Finding Joy, and Building a Life Worth Living

    by Scott Nelowet

    • List rank#9
    • Price$5
    • Rating4.9
    • Reviews14

    View on Amazon · Full data on KDPTop

  10. The Owl Was a Baker's Daughter: Obesity, Anorexia Nervosa and the Repressed Feminine book cover by Marion Woodman

    The Owl Was a Baker's Daughter: Obesity, Anorexia Nervosa and the Repressed Feminine

    by Marion Woodman

    • List rank#10
    • Price$9.99
    • Rating4.5
    • Reviews68

    View on Amazon · Full data on KDPTop

Same niche in Books: Physiological Aspects

FAQ

Is Physiological Aspects a good niche for Amazon KDP?

Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 102 reviews and sells for $9.48.

How many reviews do you need to rank in Physiological Aspects?

The median best seller has 102 reviews, and 49% of them have fewer than 100.

What do Physiological Aspects best sellers cost?

The median price is $9.48; half of the best sellers are priced between $2.99 and $11.24.

Can new books break into Physiological Aspects?

6% of the current best sellers were released in the last 90 days.

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.