Personal Health — Kindle Category Opportunity
Competition snapshot for the Teen & Young Adult best-seller list, ease-of-entry score 51.5/100.
Category metrics
Score
51.5
Median reviews
182.5
Weak share (top 20)
35%
Median price
$4.99
Median star rating
4.6
Books scanned
50
Worth writing in?
The Personal Health list shows real reader demand with room left for newcomers: the median book carries 182.5 reviews, yet 35% of the top 20 still sit under 100 reviews. 4 top-15 books hold fewer than 100 reviews at $0.99–4.99 — classic self-publishing breakout books. Ease-of-entry score 51.5/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on Amazon| # | Title | Star | Reviews | Price |
|---|---|---|---|---|
| 3 | AMBOS LADOS DEL CAMINO (Spanish Edition) | — | 0 | $0.99 |
| 13 | THUNDERDOME THEORY | 5.0 | 1 | $0.99 |
| 8 | Food Macros Made Easy: Macros for Beginners. A guide to understanding macros nutrition and counting macros. Learn to tailor a macro diet for beginners, including adjusting macros for weight loss. | 4.6 | 47 | $4.99 |
| 10 | My First Period Book for Young Girls 8-12: The Complete Guide for Tweens About Growing Up, Menstrual Hygiene, and Self-Care During Puberty | 4.6 | 98 | $2.99 |
High-frequency phrases in this category's titles
Mine all categoriesHigh-frequency phrases mined from the 50 best-seller titles on this category's list. The ease-of-entry score tells you how winnable the category is; these title phrases tell you which words readers search with — use the two layers together. Frequency is a title statistic, not a search-volume estimate.
| Phrase | Titles | Rank-weighted score |
|---|---|---|
| growing up | 4 | 111 |
| essential life skills | 3 | 95 |
| 100 essential life skills | 2 | 76 |
| teen boys | 2 | 75 |
| ley de | 2 | 62 |
| first period | 2 | 51 |
| sex education | 2 | 47 |
| staying safe | 2 | 47 |
| young girls | 2 | 47 |
| guide to puberty | 3 | 46 |
| body changes | 2 | 40 |
| girl guide to puberty | 2 | 30 |
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More Teen & Young Adult categories
9 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 83.0 | 2.5 |
| █████ | 67.5 | 40 |
| █████ | 63.0 | 37.5 |
| █████ | 61.5 | 80 |
| █████ | 61.0 | 114 |
| █████ | 59.0 | 22 |
| █████ | 59.0 | 82 |
| █████ | 51.5 | 138 |
| █████ | 47.0 | 139.5 |
Subcategory names are visible after sign-in — a free account unlocks every subcategory score.
Sign up free to unlockCheck the keywords before you write
Category scores show where entry is easiest; keyword lookups show whether readers actually reach for it. A free account includes keyword competition lookups plus unlimited category scans.
After you publish: why aren't readers buying?
Category research picks the direction; review diagnosis reads the readers. The same platform clusters a book's critical reviews into severity-ranked root causes, each anchored to verbatim quotes — see it applied to a full narrative-history title.
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Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.