How we work

Corrections

When we get something wrong, we fix it. If the fix changes a fact, a number, a claim or a recommendation, we log it here, newest first.

How to report an error

Reply to any of our emails, or use our contact form. Tell us the page, what’s wrong and, if you have one, a source.

We check each report against the original source. If we were wrong, we fix the page and add an entry below.

Corrections log

• October 14, 2026

  How to Sleep After Rotator Cuff Surgery, and When Nights Get Easier. We said most of the 250 people in one sleep study slept comfortably again by 6 months. Of all 250, about 6 in 10 (62%) did by 6 months and about 8 in 10 (81%) by 2 years. We changed it to the exact figures because the study’s 77% counts only the people whose sleep eventually recovered.

• October 11, 2026

  Research Desk box on our peptide research pages. The Sigma Compounds card said the company published a certificate of analysis (COA) for each lot and tested every lot by HPLC. It now says “Third-party tested.” We changed it because per-lot test results aren’t published.