Insulin

Insulin Resistance

A state in which the body's cells respond more weakly to insulin, forcing the pancreas to produce ever-larger amounts of it — the most common, and largely reversible, precursor of type 2 diabetes.

HbA1c (Glycated Hemoglobin)

A biomarker reflecting average blood glucose over the past 2–3 months — the gold standard for diagnosing and monitoring diabetes, far more stable than a single glucose measurement.

Metformin

The most commonly prescribed drug for type 2 diabetes in the world — with a well-understood metabolic mechanism and an intensively studied, but still unproven, potential to slow aging.

Type 2 Diabetes

A chronic metabolic disease in which the body loses its ability to properly regulate blood glucose — and one of the few chronic diseases where a large randomized trial showed that lifestyle change alone can outperform a drug.

Berberine

A plant alkaloid sometimes called 'nature's metformin' — studies show a meaningful effect on blood glucose, though it doesn't replace pharmacological treatment.

Hypothyroidism

One of the most common hormonal disorders, especially in women — it slows metabolism and is often mistaken for chronic fatigue or 'ordinary' weight gain.

Visceral Fat

Fat tissue that accumulates around the internal organs of the abdominal cavity is metabolically far more active and harmful than subcutaneous fat — even though the two can look similar from the outside.

Obesity

A chronic disease linked to excess body fat — and its relationship with mortality, mapped in the largest available meta-analysis covering over 10 million participants, has the shape of a curve, not a straight line.

Artificial Sweeteners and Insulin: Do They Raise Blood Sugar Despite Zero Calories?

"Zero calories, so zero effect on the body" is the assumption behind the popularity of artificial sweeteners among people watching their blood sugar — but two solid scientific studies paint a far more complicated, even contradictory, picture. A large network meta-analysis covering 36 studies found no effect of artificially sweetened beverages on glucose or insulin compared with water — but those studies mostly tested a single, one-off dose. Meanwhile, a 10-week clinical trial testing daily, chronic consumption of sucralose alone found a real, measurable rise in insulin levels and a drop in insulin sensitivity in healthy young adults. This contradiction is itself the most interesting takeaway of this article — because it suggests a single sip of a sweetened drink is probably nothing, but a daily, weeks-long habit might be something else entirely.

August 24, 2026

Intermittent Fasting and Metabolism: Does Fasting Slow It Down?

"Don't go too long without eating, or your body will enter starvation mode and slow your metabolism" — one of the most commonly repeated warnings against intermittent fasting. A controlled 84-hour fasting study shows the opposite: short-term fasting didn't slow resting energy expenditure, it increased it, driven by more than a doubling of norepinephrine. 'Starvation mode' is a real phenomenon, but it applies to longer, more severe caloric restriction — not a fast lasting hours or even a couple of days.

August 23, 2026

Lemon Water on an Empty Stomach: Does It Really Speed Up Metabolism?

"Drink a glass of lemon water right after waking up to kickstart your metabolism" is one of the most repeated pieces of advice online, almost always without a source. The truth is more interesting than the myth itself: there's a solid study showing that plain drinking water genuinely, measurably raises metabolic rate — by as much as 24% within an hour of drinking it. The catch is that no human study has ever tested adding lemon to that water for its effect on metabolic rate or weight loss. This isn't a story about a "debunked myth" — it's about a myth nobody has formally tested, and that distinction matters. In this article we separate the two elements: what water actually does, and why we honestly can't say the same about lemon.

August 24, 2026