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Nervous System (Diseases & Physical Ailments, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Nervous System (Diseases & Physical Ailments, Kindle eBooks), updated Nov 3, 2026: median price $8.49, median 94 reviews, average rating 4.5 and a KDPTop opportunity score of 29/100 (highly competitive).
| Price range (middle 50%) | $4.98 – $11.04 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 14% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 13% of the parent category Diseases & Physical Ailments (714), one of the easier corners under it.
- Prices spread wide: the middle half runs from $4.98 to $11.04, so budget editions and premium or boxed sets sell side by side.
Top 10 Nervous System best sellers
-
The Ageless Brain: How to Sharpen and Protect Your Mind for a Lifetime
- List rank#1
- Price$15.99
- Rating4.6
- Reviews440
-
Lucky Man: A Memoir
by Michael J. Fox
- List rank#2
- Price$1.99
- Rating4.6
- Reviews3,517
-
A Symphony in the Brain: The Evolution of the New Brain Wave Biofeedback
by Jim Robbins
- List rank#3
- Price$2.99
- Rating4.6
- Reviews228
-
The End of Alzheimer's Program: The First Protocol to Enhance Cognition and Reverse Decline at Any Age
- List rank#4
- Price$9.99
- Rating4.6
- Reviews2,673
-
Unthinkable: An Extraordinary Journey Through the World's Strangest Brains
by Helen Thomson
- List rank#5
- Price$2.99
- Rating4.3
- Reviews978
-
My Stroke of Insight: A Brain Scientist's Personal Journey
by Jill Bolte Taylor
- List rank#6
- Price$9.99
- Rating4.6
- Reviews6,598
-
Everything You Need To Know About Parkinson's Disease (All About Parkinson's)
by Lianna Marie
- List rank#7
- Price$0.99
- Rating4.5
- Reviews369
-
The 28-Day Fascia Reset Method: Release Chronic Pain and Tension, Calm Your Nervous System, and Move Freely Again, Using Items You Already Have
- List rank#8
- Price$8.99
- Rating4.7
- Reviews108
-
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$14.99
- Rating4.6
- Reviews181
-
Whole Brain Living: The Anatomy of Choice and the Four Characters That Drive Our Life
by Jill Bolte Taylor PhD
- List rank#10
- Price$10.99
- Rating4.7
- Reviews1,543
Same niche in Books: Nervous System
FAQ
Is Nervous System a good niche for Amazon KDP?
Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 94 reviews and sells for $8.49.
How many reviews do you need to rank in Nervous System?
The median best seller has 94 reviews, and 51% of them have fewer than 100.
What do Nervous System best sellers cost?
The median price is $8.49; half of the best sellers are priced between $4.98 and $11.04.
Can new books break into Nervous System?
14% 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.