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Platform Portability
Uses Substack subdomain (erictopol.substack.com). Migrating would require subscribers to re-subscribe at a new address.
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Facts, data and analytics about biomedical matters.
Data updated Today
Avg Comments
7.8
Avg Likes
218.9
Engagement Rate
0.11%· ~227 likes + comments/post
(comments + likes) / subscribers
Typical for lists with 211K+ subscribers
Quality Score
Engagement vs Health
0.11% engagement rate
Score Breakdown
Engagement Score
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12.6K paid
Weekly Growth
Stable
Track revenue changes over time
Start tracking — freeTrack CPM rates as they change
Start tracking — freeSubscriber counts are rounded by the platform — step changes may not reflect actual growth
vs 144 newsletters in Health
211K places you in the top 10% of newsletters in this category.
Engagement Rate
0.11%
median: 0.00%
Posts per Week
0.9
median: 1.0
Publishing Consistency
75/100
median: 67/100
Subscribers
211K
median: 1K
Brain Health Kitchen
44K subs
Second Brain
38K subs
The Glow Wellness
33K subs
Get email alerts when subscribers drop or spike, when new sponsors appear, when pricing changes, or when publishing cadence shifts. Track unlimited newsletters across your watchlist with the Starter plan.
$29/mo·cancel anytime
See what's includedGet the full whitespace list with each brand's category fit, audience overlap, and recommended pitch order. Plus a comparison of Ground Truths vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including Shannon Watts next week, WHOOP, Haxan Ferments + 31 more.
$300·2-3 working days·refunded if we can't deliver
Publishing Frequency
Weekly
Last published Jul 12, 2026
0.9 posts/week avg
Health Pricing
$6/mo median
Above average(+33%)
Monetization Readiness
Already monetizing
100% of similar-size Health newsletters also have paid tiers
Unlock revenue estimates, CPM benchmarks, and detected sponsors
Start tracking — free211.0K subscribers and 0.11% engagement — past the threshold where Health newsletters typically attract sponsors.
Premium Pricing
Priced at $8/mo, 33% above the Health median of $6/mo.
