Why scars never disappear
Scars are a natural part of the body's healing process, designed to protect rather than disappear. When skin is damaged, a series of biological processes occur to form scar tissue, which is made primarily of collagen. This scar tissue is tougher and lacks the features of normal skin, which is why scars can remain for a lifetime.
- ▪Scars form when injuries damage the deeper layers of skin, leading to the production of collagen and other connective tissues.
- ▪The body prioritizes healing and protection over aesthetic appearance, resulting in permanent scar formation.
- ▪Keloid scars can develop when the body produces excessive collagen, leading to raised and sometimes painful scars.
Popular Science files mainly under science. We currently carry 122 of its stories.
Story provenance
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Popular Science |
| Canonical URL | https://www.popsci.com/science/why-scars-never-disappear/ |
| Publication time | Tue, 28 Apr 2026 09:08:00 -0400 |
| Retrieval time | 2026-04-28T13:09:31.920Z |
| Last seen | 2026-04-28T13:09:31.920Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | GHBm-t9nmRmc |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Science Ask Us Anything Why scars never disappear Scar tissue is built to protect, not vanish. By RJ Mackenzie Published Apr 28, 2026 9:08 AM EDT Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Scars protect the body quickly and efficiently after an injury. Image: Liliya Krueger / Getty Images Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Email address Sign up Thank you! Terms of Service and Privacy Policy. I am a clumsy guy. If there are sharp corners nearby, I’ll bash into them. If there’s a surface underfoot with even a light sheen of polish, I’ll take a tumble.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Popular Science.
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