Explore the Science
From the liver and cardiovascular system to metabolism, digestion and healthy aging — explore evidence-based explanations of how the human body works, and what current research is revealing.
Explore the Human Body
Start with the system you're curious about — every article distinguishes what's established from what's still being studied.
Liver
Liver function, fat metabolism, MASLD, MASH, fibrosis, glucose regulation and emerging liver research.
Cardiovascular System
Blood pressure, vascular health, endothelial function, cholesterol, atherosclerosis and cardiovascular research.
Digestive System
Digestion, the gut microbiome, intestinal barrier, fiber, metabolites and the gut–brain axis.
Metabolic Health
Insulin resistance, blood glucose, metabolic syndrome, obesity and metabolic health.
Where research and daily life meet
Fatty Liver / MASLD
Why metabolic health and liver health are deeply connected →Blood Pressure
What actually determines your blood pressure? →Gut Microbiome
What scientists are discovering about the trillions of microbes living in your gut →Insulin Resistance
Understanding one of the central mechanisms of metabolic disease →A closer look at what new research is revealing
Every article links to a real, citable source — no invented studies, no placeholder statistics.
Two new drug classes show histologic benefit in MASH
Large randomized trials now support two distinct approaches to MASH with fibrosis: a thyroid-hormone-receptor agonist and a GLP-1 receptor agonist. Both improved liver histology in controlled trials; longer-term outcome data are still accumulating.
AHA/ACC replace their blood pressure guideline for the first time since 2017
Thirteen medical societies jointly updated the diagnostic threshold framework and risk calculator for high blood pressure, and gave firmer encouragement toward a systolic target below 120 mmHg for many adults.
What short-chain fatty acids actually do in the body
A major review consolidates how compounds made when gut bacteria ferment fiber interact with the immune system, gut barrier and metabolism — and where the mechanisms are still being worked out.
Continuous glucose monitors mainly help people who aren't healthy yet
A fresh review of 23 studies in non-diabetic users found CGM use improved blood glucose and dietary adherence overall — but splitting by group showed the benefit concentrated in people with prediabetes, with no appreciable glycemic benefit in already-healthy users.
Health information moves fast. Evidence moves carefully.
We take popular health claims and compare them with what the evidence actually shows.
Does a fatty liver always cause symptoms?
"Fatty liver is harmless if you feel fine."
MASLD is frequently silent. Fibrosis stage — not symptoms — is the strongest predictor of long-term liver-related outcomes, which is why screening focuses on metabolic risk factors rather than how someone feels.
Does magnesium lower blood pressure?
"Magnesium supplements lower blood pressure."
A 2025 meta-analysis of 38 randomized trials found a modest average reduction — about 2.8 mmHg systolic — that was considerably larger in people with hypertension or low magnesium, and not significant in normotensive people.
Is the gut microbiome responsible for everything?
"Fix your gut, fix everything."
Gut bacteria genuinely influence metabolism and immune signaling — that part is established. Whether shifting the microbiome reliably improves most of the conditions it's associated with is still an open, active question.
Evidence Strength
How we describe the quality and consistency of research behind a claim — not a verdict on whether something is good or bad.
We don't expect you to take our word for it
Every article on this site separates four things, clearly and consistently:
What we know
Strongly supported by high-quality human evidence.
What the evidence suggests
Promising evidence, but limitations remain.
What is emerging
Early research requiring further investigation.
What remains uncertain
Insufficient, conflicting or evolving evidence.
Three ways to keep going
Understand Your Body
Explore the major systems that keep you alive and healthy.
Explore Body Systems →Follow the Evidence
Explore the latest research and what scientists are discovering.
Latest Research →Question the Hype
Separate popular health claims from the evidence behind them.
Science vs Hype →