explainer · HACKER NEWS RECOMMENDATION
Vitamin D and immunity
Dr. John Campbell · 1 HN recommenders · 1 recommendation months
Recommended by 1 Hacker News commenters across 1 months (2020–2020).
SignalTube analysis
Among 32 other explainer videos tagged Medicine & infectious disease, the mean is 3.3 distinct HN recommenders. This video has 1 distinct HN recommenders, below that mean. Recommendations span 1 distinct month; the peer average is 2.8 months. This is a data-derived comparison, not a human review or quality rating.
20% of its 5 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2020–2020; those years describe discussion history, not upload date. A verified runtime is not present in the current metadata snapshot. A verified YouTube publication date is not present in the current metadata snapshot.
- Channel / speaker
- Dr. John Campbell
- Verified runtime
- Not verified in the current YouTube metadata
- YouTube upload date
- Not verified
- Hacker News mention years
- 2020–2020
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other explainer videos in Medicine & infectious disease. “Shared recommenders” counts HN users who recommended both videos in the source graph.
| Video | HN recommenders | Recommendation months | Positive label share | Shared recommenders | Runtime | Upload date |
|---|---|---|---|---|---|---|
| Vitamin D and immunityCurrent video | 1 | 1 | 20% | — | Not verified in the current YouTube metadata | Not verified |
| We Were Taught to Call Death a Blessingexplainer · CGP Grey | 12 | 11 | 60% | No recorded overlap | Not verified | Not verified |
| Why Some Diseases Only Traveled One Directionexplainer · CGP Grey | 11 | 9 | 69% | No recorded overlap | Not verified | Not verified |
| Exponential growth and epidemicsexplainer · 3Blue1Brown | 10 | 1 | 50% | No recorded overlap | Not verified | Not verified |
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
Each note combines the dataset’s stance label and short rationale; comment bodies are not reproduced. Open the HN source for the original discussion.
The archive classifies this as a contextual reference in “Study of the effect of Vitamin D, Magnesium and Vitamin B12 on Covid-19 patients”. Its short rationale: Early March video showing the vitamin D link was known.
The archive classifies this as a contextual reference in “Role of Vitamin D in the prevention of Coronavirus 2019 infection and mortality”. Its short rationale: First of several Campbell videos on vitamin D and mortality.
The archive classifies this as a contextual reference in “Vitamin D looks powerful, underutilized for Covid-19”. Its short rationale: One of several Campbell videos on vitamin D deficiency and mortality.