Editorial Policy

HealthyLifeStyles publishes free health calculators and educational guides. This policy explains how that content is created, sourced, reviewed, and kept up to date — and where our money comes from — so you can judge how much to trust it.

Who creates our content

Content is researched and written by our editorial team. We do not claim clinical review unless a qualified individual reviewer is explicitly named on the page. We do not invent author names or credentials.

How we research and write

• We start from primary, authoritative sources — peer-reviewed studies and guidance from bodies such as the CDC, WHO, NIH, ACOG, the American Heart Association, and registered professional organizations.
• Every calculator uses an established, published formula. The exact equations and their sources are documented on our methodology page.
• We write in plain language, hedge where the science is uncertain, and avoid sensational or absolute health claims.
• We do not fabricate statistics, testimonials, or “as used by” endorsements.

Medical and accuracy review

Health-related content is educational and should not be treated as clinical advice. A visible medical-review attribution is not displayed until an individual's qualifications and completed review can be verified; an ordinary update date is not a medical-review date.

Sourcing & citations

Articles list their sources in a “Reviewed & sources” section, and tool pages include a “Sources & references” list. We link directly to the original research or guidance wherever possible so you can verify it yourself.

Independence, ads & affiliates

• Editorial decisions are independent of advertising and affiliate relationships.
• Some pages display ads or include affiliate links; affiliate links are disclosed where they appear, and we may earn a commission at no extra cost to you.
• A product being recommended is never contingent on a commercial relationship — recommendations reflect relevance to the tool, not who pays us.

Corrections & updates

We correct errors when identified. Pages show an update date only when one is available from the content record. If you spot a mistake, please tell us at hello@healthylifesstyles.com and we’ll review it.

Privacy

Many calculations run in your browser; recipe analysis and image downloads use a server, and HRV readings persist locally. See our privacy policy for details.