PubMed
Find biomedical citations and abstracts, then follow links to the underlying publications.
Explore the original source- Published by
- National Library of Medicine
- Getting in
- Free searching; full-text access and reuse depend on each publication.
- What you can work with
- Citation text · NBIB · CSV · XML
- Links and access checked
A good place to start
Search sleep exercise, then inspect the publication types and methods of two relevant records.
What you can find
PubMed helps you locate biomedical and life-science publications through citations, abstracts, and links. The user guide explains search tools, publication types, and exports. Some records lead to free full text, while others lead to a publisher or library service. PubMed itself is not a full-text dataset.
Try this first
Search sleep exercise. Select two relevant records and inspect what kind of work each describes: a trial, observational study, review, or something else. Note the participants, what was measured, and the dates. If an abstract leaves a method unclear, record that gap instead of guessing. This activity is about reading evidence, not choosing a treatment.
Access and reuse
Searching is free. The disclaimer explains that indexing does not imply endorsement and that linked material has its own rights. Check the full-text provider's license before copying or redistributing an article. Use the documented export tools for citations.
Provenance
Save the PMID, title, authors, publication date, and DOI when present. Read any correction or retraction notices attached to the record. A neat summary should always let another reader find the exact publication and see which information was unavailable.
What to watch for
- PubMed is a citation index, not a collection of freely reusable full-text articles.
- An abstract can omit crucial methods and limitations.
- Being indexed does not establish that a claim is correct or suitable medical advice.