Decode your numbers
Understand blood pressure readings, BMI categories, BAC limits, and other metrics you see on apps, lab reports, and home devices.
.gov trusted From NIH MedlinePlus
Wellness is more than meals and workouts—it starts with knowing what your vitals and body signals actually mean. This official MedlinePlus guide breaks down everyday health terms in plain language so you can read results, track changes, and talk confidently with your care team.
Each entry links to respected institutes—so you get accurate context, not search-engine noise.
Understand blood pressure readings, BMI categories, BAC limits, and other metrics you see on apps, lab reports, and home devices.
Learn how basal temperature, cervical mucus, respiratory rate, and similar signals work together when you monitor your health over time.
MedlinePlus is a U.S. government health information service. Content is written for patients and families, backed by NIH and partner agencies.
Four steps you can repeat whenever a new term shows up on a chart or device.
Pick a term you have seen recently—blood type, weight, UV exposure, or spotting.
Read the MedlinePlus explanation and the cited institute behind it.
Connect the definition to your own tracking habits or next clinician visit.
Branch into related MedlinePlus topics on fitness, nutrition, vitamins, and minerals.
Select any topic on MedlinePlus for a full definition, source attribution, and links to deeper reading.
“Being healthy is about more than diet and exercise. It is also about understanding how your body works and what it needs to stay healthy. You can start by learning these general health terms.”— MedlinePlus, U.S. National Library of Medicine
Spend five minutes with MedlinePlus general health definitions—then keep the page bookmarked whenever a new number or term appears.
Go to MedlinePlus: General Health