Heart and blood pressure
Everything we have published on Heart and blood pressure, newest first. Background, research and plain explanation — not only the headline of the day.
Health is a topic here, not advice. We report what research shows, name the source, and say what is still unknown. For anything about your own health, ask a doctor.
What Your VO₂ Max Number Really Means
A watch can estimate your aerobic fitness, but the useful signal is a careful trend, not a verdict from your wrist.
The Salt Swap That Could Prevent Strokes — and the People Who Should Not Make It Alone
Replacing some sodium with potassium can lower blood pressure and may prevent strokes, but the supermarket shortcut comes with an important safety question.
10,000 Steps Came From a Product Name in 1965. Australia's Guidelines Now Say 7,000.
The world's best-known health target began as a pedometer's trade name. The largest review of the evidence puts the bend in the curve between 5,000 and 7,000 steps — and finds five outcomes where it never bends at all.
The Split Verdict on Near-Death Experiences: What the Evidence Actually Shows
Roughly one in five people revived from cardiac arrest report a vivid experience from the time their heart had stopped. Researchers agree that much. What it means is where they split.
Why Doctors Check Blood Pressure in Both Arms — and Almost No One Does It at Home
A gap of more than a few points between your left and right arm is common, usually harmless, and occasionally the first clue to something worth checking. Here's how to test it yourself in under two minutes.
AI and Your Job: The Five Levels That Actually Matter
AI is already doing real slices of skilled work, from hospital paperwork to heart-attack screening. How much control it is given over a task, not the technology itself, decides what changes for you.
Preeclampsia rates in minority communities shed light on the social roots of maternal health disparities
Disproportionate rates of preeclampsia – a potentially dangerous pregnancy complication – in immigrant populations reflect the physical toll of social and economic insecurities.
Chronic pain is missing from America’s heat warnings
Chronic pain can make it hard to walk, carry groceries or sleep through the night. A new study finds that extreme temperatures are linked to that kind of pain.
Is death the end, or does something continue? What we actually know
Every culture has answered the question. Biology answers part of it, philosophy answers another part, and one very old set of texts answers it in a way most people have never actually read.