
My personal Substack
| Platform | Pricing | Only free issues | Publishes | Daily | |
|---|---|---|---|---|---|
| Issues | 45 | Founded | 3 years ago | Last Issue | 7 days ago |
| Active | |||||

If you do not have time to watch this video or to read through this sub stack you may be interested simply to know that I now supplement my diet with flaxseeds on most days mixing in with porridge, cereals and other foods. I do this because...
Central argument: We propose that severe vitamin D deficiency, partly related to reduced cutaneous vitamin D synthesis in darker skin at northern latitudes, may be an important and under-recognised biological contributor to ethnic health in...
Why Are There So Many Centenarians?
In this discussion, John Campbell talks with consultant physician and medical researcher Dr David Grimes about the remarkable increase in the number of people living to 100 years and beyond. The conversa...
Safe, effective and cheap
In this discussion, John Campbell and physician, Dr David Grimes examine the essential role of vitamin D in immune function.
Thanks for reading John’s Substack! Subscribe for free to receive new posts and support...
The video examines unusual post mortem ‘clots’ as seen above. These structures are light in colour and often white. They are completely distinct from the red form of clots typically seen that developed f...
Subscribers, engagement, traffic and sponsorship for John’s Substack.
| Subscribers | Engagement | 91 | Monthly Web Visits | ||
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| Accepts Sponsors | Estimated Cost per Ad | ||||
How this newsletter ranks in the official Substack charts.
| #125 |
The writers behind this newsletter.
Nurse teacher, researcher, film maker.
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