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Nervous System (Diseases & Physical Ailments, Books): Amazon KDP category data
Amazon Books Best Sellers data for Nervous System (Diseases & Physical Ailments, Books), updated Nov 2, 2026: median price $14.99, median 368 reviews, average rating 4.6 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $11.59 – $17.98 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 11% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 15% of the parent category Diseases & Physical Ailments (2,378), one of the easier corners under it.
- Its review barrier is higher than in 72% of Books categories: the median best seller has 368 reviews, so new books need time to build up.
Top 10 Nervous System best sellers
-
The End of Alzheimer's: The First Program to Prevent and Reverse Cognitive Decline
- List rank#1
- Price$11
- Rating4.5
- Reviews5,517
-
Brain Defenders: Harness the Power of Your Immune Cells to Protect Your Brain for Life
- List rank#2
- Price$16
- Rating4.6
- Reviews197
-
The End of Alzheimer's Program: The First Protocol to Enhance Cognition and Reverse Decline at Any Age
- List rank#3
- Price$11.88
- Rating4.6
- Reviews2,673
-
The Ageless Brain: How to Sharpen and Protect Your Mind for a Lifetime
- List rank#4
- Price$16.30
- Rating4.6
- Reviews440
-
Change Your Diet, Change Your Mind: A Powerful Plan to Improve Mood, Overcome Anxiety, and Protect Memory for a Lifetime of Optimal Mental Health
by Dr. Georgia Ede M.D.
- List rank#5
- Price$14.63
- Rating4.6
- Reviews1,252
-
Good Mood Food: 100+ Gut-Friendly Recipes to Feel Better Everyday
by Tim Spector
- List rank#6
- Price$29.51
- Rating4.4
- Reviews27
-
The Plant Paradox: The Hidden Dangers in "Healthy" Foods That Cause Disease and Weight Gain – An NYT Bestselling Medical Nutrition Guide to Longevity and Wellness
- List rank#7
- Price$11.10
- Rating4.4
- Reviews17,214
-
My Stroke of Insight: A Brain Scientist's Personal Journey
by Jill Bolte Taylor
- List rank#8
- Price$8.99
- Rating4.6
- Reviews6,598
-
The Invincible Brain: The Clinically Proven Plan to Age-Proof Your Brain and Stay Sharp for Life – Johns Hopkins Neuroscientist's 12-Week Program to Reverse Cognitive Decline
by Majid Fotuhi
- List rank#9
- Price$21.45
- Rating4.6
- Reviews181
-
Keep Your Brain Alive: 83 Neurobic Exercises to Help Prevent Memory Loss and Increase Mental Fitness
by Lawrence Katz
- List rank#10
- Price$6.99
- Rating4.2
- Reviews855
Same niche in Kindle eBooks: Nervous System
FAQ
Is Nervous System a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 368 reviews and sells for $14.99.
How many reviews do you need to rank in Nervous System?
The median best seller has 368 reviews, and 28% of them have fewer than 100.
What do Nervous System best sellers cost?
The median price is $14.99; half of the best sellers are priced between $11.59 and $17.98.
Can new books break into Nervous System?
11% 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.