Nutrition · Heart · Skin · Joints · Mental health

Health guidance you can trace back to the source.

Every figure. Every article.

HealthCoachJP covers twelve health topics from primary sources USDA, FDA, NIH, CDC and AHA and shows you the date every article was last checked.

Why HealthCoachJP

Most health blogs give you articles. We show our working.

Every row below is something you can check yourself on any article on this site.

Typical health blogs
HealthCoachJP
Where figures come from
Third-party aggregators, uncredited
Primary sources: USDA, FDA, NIH, CDC, AHA
Unverifiable numbers
Printed anyway
Not printed. We say the sources conflict
How topics connect
Isolated posts
Linked topic hubs across twelve areas
Freshness
No date, or publish date only
A last-checked date on every article
Who wrote it
Anonymous or invented experts
Named writer, stated beat, stated limits
Corrections
Silent edits
Logged and published

Twelve topics, one evidence base

Start where your question is

Each topic is a hub, not a tag. The hub page links every article underneath it.

Free tools

Work it out for yourself

11 calculators and trackers. No sign-up, nothing stored.

BMI Calculator
Calorie Counter
Body Fat %
Sleep Cycle
Exercise Tracker
Nutrition Planner
Weight Loss Planner
Daily Steps
Health Age
Mental Health Quiz
Period Tracker
See all 11 →

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The lower back pain relief products worth buying, ranked by how much evidence sits behind each one, with setup instructions, safety limits and what to track.

Lower Back Pain: Causes, Red Flags, Treatment and Exercises

What causes lower back pain, the red flags that need urgent care, how it is assessed, the treatments evidence supports, and a symptom-pattern table routing you to the right guide.

Tight Hamstrings and Lower Back Pain: Causes & Fixes

How tight hamstrings affect pelvic tilt and lumbar load, a one-minute self-test that separates muscle tightness from sciatic nerve tension, and the stretches and strength work that help.

Hunchback Posture and Kyphosis: Causes, the Wall Test, and How to Fix It

What causes a hunchback posture, the 30-second wall test that shows whether your curve is excessive, and why most rounded upper backs are more fixable than you have been told.

Recently checked

Latest research and guidance

Sorted by last-checked date, not publish date.

One email a week. What changed and why.

We send the articles we re-checked that week, and what we got wrong. Nothing else.

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