Wellness.
Small habits with outsized effects on how you actually feel.
14 articles on the shelf.
Cholesterol mg/dL to mmol/L: how to convert your lipid units
Convert cholesterol with divide by 38.67 and triglycerides with divide by 88.57, see a worked LDL example, and avoid the glucose divide-by-18 trap.
Navy body fat formula: how the tape method estimates body fat
Learn which tape measurements the US Navy body fat formula uses, how to take them, and why the result is an estimate rather than a scan.
mg/dL to mmol/L: how to convert a blood sugar reading
Convert a single blood glucose reading between mg/dL and mmol/L with the divide-by-18 rule, a worked example, and common readings in both units.
How to lower A1C safely: what changes the number and when
Learn how food, activity, medication, sleep, and testing conditions affect A1C, plus what a realistic improvement timeline looks like.
Body fat percentage chart for men and women, by age
Body-fat categories for men and women, reference bands by age, and why the measuring method can matter as much as the category you land in.
Waist-to-hip ratio chart: how to measure and read your result
Measure waist and hips consistently, calculate the ratio, and understand sex-specific risk bands and their limitations.
eGFR levels by age: a chart with important caveats
See population-average eGFR levels by age and learn why kidney disease cannot be diagnosed from age or one creatinine-based estimate alone.
Normal A1C by age: do targets change for older adults?
Diagnostic A1C thresholds stay consistent in adulthood, but safe treatment goals may change with health, medicines, and hypoglycemia risk.
Blood sugar chart by age: fasting and after-meal ranges
A clear blood sugar chart that separates diagnostic cutoffs from common diabetes treatment targets and explains when age changes the plan.
Triglyceride-to-HDL ratio: formula, ranges, and limits
Calculate the triglyceride-to-HDL ratio, understand what a higher result may suggest, and learn why it cannot replace the full lipid panel.
Non-HDL cholesterol calculation: formula and target ranges
Learn the non-HDL cholesterol formula, see worked examples, and understand why this simple value can add context when triglycerides are elevated.
Cholesterol ratio chart: total/HDL, LDL/HDL, and TG/HDL
Compare the three cholesterol ratios, learn each formula, and understand why lower is not the only thing that matters.
A1C to blood glucose conversion: chart, formula, and examples
Convert A1C to estimated average glucose in mg/dL or mmol/L and learn why the estimate may differ from meter and CGM readings.
Friedewald formula: how calculated LDL cholesterol works
The Friedewald LDL formula in mg/dL and mmol/L, how VLDL is estimated from triglycerides, how the Sampson equation and direct LDL differ, and when the estimate stops being reliable.
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