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Each answers one question in a minute — the full picture comes together in the self-check.
When to go to bed to wake at a cycle boundary — and how much sleep you actually bank.
Open →Your daily caffeine total, how it compares to the 400 mg guideline, and when to have the last cup.
Open →How many hours you sit and how much movement offsets it, per the Lancet data.
Open →How much fluid you personally need per the EFSA anchors — and when to drink less to sleep through the night.
Open →How much screen time adds up and why eyes tire — your 20-20-20 break plan and what actually protects your sight.
Open →How many kilos your head “weighs” when you tilt down to your phone — and how it adds up over a day.
Open →A weekly volume check: is the load growing faster than your joints can adapt?
Open →Max heart rate by the Tanaka formula and five Karvonen training zones — for your age and resting pulse.
Open →How much protein you actually need: for training, weight loss, or keeping muscle with age.
Open →Calculate BMI from height and weight, see the category and weight range, with age- and sex-aware context.
Open →Your energy burn by the Mifflin–St Jeor formula and a safe deficit for weight loss without yo-yo.
Open →One tape measure beats the scales: waist-to-height predicts risk better than BMI.
Open →Soda, juice, sweet coffee: how many spoons of sugar you drink a day and a year versus the WHO limit.
Open →The diet’s quiet hero: are you getting the 30 g of fibre that protect heart, gut and weight?
Open →How much of your day is packaged, ultra-processed food — and why 2024 data says it matters more than calories.
Open →What cigarettes cost in money and years — and how much quitting wins back, per the research.
Open →Enter your blood pressure — we’ll show its clinical category and what to do about it.
Open →Your skin phototype, time-to-burn at different UV levels and the SPF you actually need — sun ages skin faster than years do.
Open →A Kegel exercise plan — first-line for leaks per Cochrane. Works for women and men.
Open →We turn wine, beer and spirits into units and calories and compare the weekly amount with a low-risk anchor.
Open →An estimated BAC range from sex, age, height, weight and time — a separate model, not a breath test.
Open →Salt hides in ready food, not the shaker. We estimate your grams against the WHO 5 g limit — the top lever for blood pressure.
Open →How loud and how long you can listen safely — based on the WHO safe sound-dose reference.
Open →Estimate glomerular filtration with CKD-EPI 2021 from creatinine, age and sex, without a race coefficient.
Open →Insulin-resistance index from fasting glucose and insulin, with context on why one cut-off is not enough.
Open →Estimate LDL with the Friedewald equation from total cholesterol, HDL and triglycerides, including a validity check.
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