Health physics: how we look at things
Health physics is the physics of where your surroundings meet your body. The term comes from radiation protection, where health physicists measure what reaches people and work out what it means for them. SolarHealth takes the same approach to everyday questions: the sun's activity and Earth's magnetic field, the light you live under, the air and water at home.
Every guide on SolarHealth follows the same few rules, so you can tell at a glance how solid a statement is.
Traditions and theories: a fair hearing and an honest check
We also write about traditions and theories that science hasn't confirmed, as long as nobody has ruled them out. Each one gets a plausibility check, and we tell you honestly what tests have shown, even when a blinded test said no. In a blinded test, people don't know whether they're getting the real thing or a dummy, so their expectations can't steer the result.
Practices like Vastu, Feng Shui or grounding are explained on their own terms first; what science currently says follows in a separate note.
Four steps, from your question to what you can do
- The question at home. We start with what people actually notice or wonder about: a restless night, a stuffy bedroom, northern lights in the forecast. The question decides what we look at.
- What physics allows. Before reading any study, we check whether a mechanism is physically plausible. How strong is the effect where you are, and how does it compare with what your body already meets every day?
- What tests show. Then we look at what studies measured, in whom, and what they can't show. We link studies where we mention them and prefer original papers over press coverage.
- What you can do anyway. Last comes the practical part: steps that make sense whatever the evidence says, like airing the bedroom, dimming the lamps in the evening or keeping a simple notebook of how you sleep.
Three words for what tests show
When a claim or a tradition has been tested, we sum up the result in one of three words.
- Supported: controlled tests found the effect, and it held up when other groups repeated them.
- Untested: nobody has tested it properly yet. That leaves the question open in both directions.
- Contradicted in blinded tests: when people didn't know whether the real thing was in use, the effect didn't show up. We still describe the tradition and say clearly what the test found.
Where research stands: for broad research fields, like solar activity and heart rhythm, guides also use four plain labels. Well established: consistent results from many studies. Mixed: some studies find an effect, others don't. Early: few or small studies. Open question: ideas and traditions that haven't been tested directly.
Sources, dates and corrections
Live data: every value shows its source, instrument and time. Gaps stay visible; we never fill them with estimates. Current sources: NOAA Space Weather Prediction Center, GFZ Potsdam (Kp), NASA Solar Dynamics Observatory.
Dates: every guide shows when it was last updated, and live values carry the time they were retrieved.
Products: when we recommend a product, we say why, and we only quote measurements we can source. Affiliate links are labelled; they never decide what we write.
Corrections: spotted a mistake? Write to info.solarhealth@gmail.com. We correct and date the change, and list it in the corrections log below.
AI illustrations are labelled
Some illustrations on SolarHealth are made with AI image tools. Their captions say so, and we never use them as evidence or in place of a photo or a measurement.
Information, not medical advice
SolarHealth explains physics and research so you can make everyday decisions at home. It doesn't diagnose or treat anything and doesn't replace a doctor. If something about your health worries you, talk to a medical professional.
Corrections log
Corrections that change a statement, a number or a source are listed here with their date. Typo fixes are not listed.
No corrections so far. The log starts with the relaunch of SolarHealth.