Fitness
How to calculate sweat rate for training
Use pre/post exercise weight, fluid and urine to estimate hourly sweat loss and build a safer hydration plan.
The Kivawell Journal
Health advice that
Health advice that
survives a real week.
No miracle diets, no 5 a.m. rules. Just clear, evidence-informed guides on food, movement, your cycle, sleep and stress — written the way we build the app: calm, practical, and honest about what we don't know.
Fitness
Beginner 5K running plan: build up without rushing
Use walk-run sessions, easy effort and gradual progression to prepare for a first 5K while managing soreness and recovery.
Fitness
Deload week: when and how to reduce training
Recognize accumulated fatigue, choose a deload method and return to progressive training without losing fitness.
Fitness
RPE and RIR in strength training
Use rating of perceived exertion and repetitions in reserve to choose loads, progress safely and interpret hard sets.
Fitness
Body-fat measurement methods: DEXA, BIA, calipers and tape
Compare common body-fat methods, understand their error and choose the best way to track a meaningful trend.
Habits
Daily weight fluctuations: why the scale moves
Separate water, glycogen, digestion and menstrual-cycle changes from the slower body-fat trend.
Habits
How to measure waist circumference correctly
Find the anatomical landmark, control tape tension and breathing, and build a waist trend that is actually comparable.
Fitness
Calorie surplus for muscle gain: how much is enough?
Set a measured muscle-gain surplus, choose a realistic rate of gain and adjust using weight, waist and performance trends.
Nutrition
Protein per meal: how to distribute your daily target
Turn a daily protein target into realistic meals, understand the limits of the “30 gram” rule and plan around training.
Nutrition
Energy density and volume eating: a practical guide
Learn why calories per gram affect fullness, how to build higher-volume meals and where “healthy” portions can still become energy dense.
Fitness
MET values explained: what calorie estimates miss
Understand METs, gross versus net activity calories, why watches disagree and how to use exercise-energy estimates without double-counting.
Nutrition
High-fibre foods that fit real meals
Build a practical high-fibre day with legumes, whole grains, fruit, vegetables, nuts and seeds—without relying on one giant salad.
Fitness
Cooper 12-minute run test: complete guide
Prepare, pace and repeat the Cooper test safely; calculate estimated VO₂ max and understand why a field result differs from a lab test.
Fitness
FFMI explained: calculate and interpret it correctly
Learn what FFMI measures, how body-fat error affects it, why adjusted FFMI exists and why one cutoff cannot judge an individual.
Nutrition
Metabolism myths that confuse weight change
Metabolic damage, starvation mode, meal frequency, sweat and detox claims—what each gets wrong and what matters instead.
Habits
Physical hunger or craving? A practical check
Learn how hunger, appetite, habit and emotion overlap—and use a non-judgmental check before deciding what to eat.
Stress
Stress eating: interrupt the pattern
Why stress changes appetite, how restriction can intensify the cycle and practical ways to create a pause without shame.
Sleep
Circadian rhythm: reset your body clock
How morning light, wake time, evening light, meals and exercise shape sleep timing—and how to shift gradually.
Sleep
Sleep debt: can you catch up?
How repeated short sleep accumulates, what weekend catch-up can and cannot do, and a realistic recovery strategy.
Fitness
What to eat before a workout
Choose pre-workout carbohydrate, protein, fluid and meal size based on timing, session demands and stomach comfort.
Nutrition
Meal timing: what matters beyond the clock
How meal timing affects hunger, training and sleep—and why total intake and consistency usually matter more.
Nutrition
Electrolytes: when water is not the whole story
Sodium, potassium and fluid balance explained—when ordinary meals are enough and when long, sweaty exercise changes the plan.
Nutrition
Dietary fat: sources, portions and balance
Why fat is essential, how unsaturated and saturated sources differ, and why healthy fats still need portion awareness.
Nutrition
Carbohydrates: what they do and how much?
Understand sugars, starches, fibre, glycogen and why food quality and total intake matter more than calling carbs good or bad.
Nutrition
Plant protein: meeting your target
How to use legumes, soy, grains, nuts and seeds to reach protein needs without obsessing over complete proteins at every meal.
Nutrition
High-protein breakfast without protein products
Practical ways to reach 25–35 grams at breakfast using eggs, yoghurt, dairy, legumes and ordinary foods.
Nutrition
Healthy snacks that actually satisfy
Build snacks with protein, fibre and the right portion so they bridge meals instead of becoming a second lunch.
Nutrition
Portion sizes without weighing every meal
Use plate structure, hand portions and occasional calibration to build satisfying meals without permanent food-scale dependence.
Nutrition
How to read a food label in 60 seconds
A fast method for comparing serving size, calories, protein, fibre, saturated fat, sugar and sodium without marketing noise.
Fitness
Heart rate variability (HRV), explained
What HRV measures, why your personal baseline matters and how to avoid letting one recovery score run your training.
Fitness
Resting heart rate: what changes it?
How to measure resting heart rate, what fitness trends can show and which sudden changes deserve attention.
Fitness
Walking for weight loss: a realistic plan
How walking supports a calorie deficit, how much to add, why pace matters less than consistency and how to avoid compensation.
Fitness
Zone 2 cardio: useful, not magical
What Zone 2 means, how to find it with heart rate and the talk test, and how to fit easy aerobic work into a week.
Fitness
Progressive overload without forcing weight
How to progress training through reps, load, range, technique and volume without turning every session into a test.
Fitness
Creatine monohydrate: an evidence-based guide
What creatine does, who benefits, typical dosing, water-weight change, safety and why monohydrate is the default form.
Fitness
How to build muscle: the fundamentals
A practical guide to training volume, progressive overload, protein, calorie surplus and recovery for sustainable muscle gain.
Fitness
Body recomposition: lose fat and gain muscle
Who can realistically build muscle while losing fat, how to set calories and protein, and which progress markers matter.
Nutrition
Maintenance calories: how to find yours
Estimate maintenance calories, run a two-week calibration and tell real energy balance from day-to-day scale noise.
Nutrition
Basal metabolic rate (BMR): what it means
What BMR measures, how equations estimate it, why smart watches disagree and how to use the number without treating it as a calorie floor.
Nutrition
How to track calories accurately (without hating it)
Where food logs commonly lose accuracy, and five habits that make tracking consistent enough to be useful.
Cycle
The four phases of your cycle, explained simply
What actually changes across follicular, ovulation, luteal and menstruation — and how to plan food, training and rest around it.
Sleep
How much sleep do you actually need?
The honest answer to the 8-hour question, why sleep debt compounds, and what to fix first.
Nutrition
How much protein do you actually need?
Grams per kilo, not percentages — and why how you spread protein across the day matters more than the exact daily total.
Habits
How much water do you need a day?
Where the eight-glasses rule came from, what really sets your needs, and the one check that beats every formula.
Fitness
Is 10,000 steps a day a real target?
The number came from a 1960s pedometer name. What the research since then says about how many steps actually matter.
Stress
Stress and cortisol: what actually helps
Cortisol is not a villain. What stress does in the body, when it turns costly, and the interventions with real evidence.
Nutrition
Why weight loss stalls — and what to do
Almost every plateau is one of four things — and only one of them is physiology. How to find yours.
Fitness
Strength training for beginners: a 12-week start
Two sessions a week, six movements, one rule for adding weight. Built to be repeatable, not impressive.
Nutrition
Is breakfast really necessary?
Breakfast does not fire up your metabolism and skipping it does not ruin your day. What actually decides it.
Cycle
PMS symptoms: what actually helps
Which premenstrual symptoms are typical, what has evidence behind it, and when to see a doctor.
Habits
How much caffeine is too much?
Daily limits, how long caffeine really lasts, and why the afternoon coffee is quietly costing you sleep.
Habits
Progress beyond the scale: what else to track
Body weight answers one narrow question and hides several better ones. Seven measures worth tracking instead.
Sleep
Why alcohol wrecks your sleep
A nightcap helps you fall asleep and then dismantles the second half of the night. What actually happens.
Cycle
Eating well in pregnancy: the basics
Energy needs by trimester, the nutrients that matter most, and what to avoid — with your care team in charge.
Habits
Meal prep that survives past week two
Seven identical boxes is a countdown to takeaway. Prep components, not meals — and 90 minutes covers the week.
Habits
Why you snack at night — and how to stop
Four causes explain almost all evening snacking, and none of them is weak willpower. Each has a different fix.
Fitness
A home workout that actually progresses
Without weights you cannot add kilos — so use the four levers that make bodyweight work harder.
Nutrition
Fibre: the nutrient almost everyone misses
Most adults get half the fibre they need. The two types, how to add 10 g a day painlessly, and what it does to appetite.
Habits
Why the scale jumps two kilos overnight
Two kilos overnight is never fat. Salt, carbs, training and your cycle all move body water in predictable ways.
Habits
Staying on track while travelling
Do not run your normal routine on the road. Pick the two or three things that carry the most and let the rest go.
Stress
Breathing exercises that actually do something
Why a longer exhale calms you down, three techniques worth knowing, and how long each needs to work.
Stress
Screens, attention and why evenings feel empty
Screen time is a weak measure. What drains you is fragmented attention — switch less rather than scroll less.
Stress
Burnout or just tired? How to tell
Tiredness improves with a weekend; burnout does not. The three components and what actually helps.
Sleep
Sleep hygiene: what works and what is noise
Twenty tips is why sleep advice fails. Five changes carry almost all the effect — here they are, in order.
Sleep
Sleeping well on shift work
You cannot delete the conflict between night shifts and your body clock — but four specific things stop making it worse.
Cycle
Irregular periods: normal variation or not?
Where ordinary cycle variation ends, what commonly causes irregularity, and the signs that mean seeing a doctor.
Fitness
Cardio or strength training?
They do different jobs. What each gives you, and how to fit both into two, three or four days a week.
Fitness
Stretching and mobility: what is worth your time
Stretching does not prevent injury or cure soreness. What it does do, and a ten-minute routine that earns its place.
Fitness
Recovery after training: what actually matters
Ice baths get the attention; sleep, food and sensible load do the work. The hierarchy, in order.
Nutrition
How many meals a day is best?
Six small meals to 'stoke the metabolism' did not survive testing. What actually decides your best pattern.
Nutrition
How much salt is too much?
Most salt does not come from the shaker. Where it hides, and how to cut back without bland food.
Nutrition
Sugary drinks, juice and diet soda
Liquid calories are the easiest to remove and hardest to notice. Juice, diet drinks, and what actually works.
Nutrition
Eating out without derailing the week
Restaurant meals are bigger and oilier than they look. Four decisions made before you arrive.
Habits
Keeping the weight off: the part nobody plans
Losing weight is the short project. Why regain is so common, and the habits that separate people who hold it.
Habits
How to use the scale without it ruining your day
The scale measures one thing badly and several not at all. How to weigh so the number means something.
Cycle
Perimenopause and menopause: what changes
Cycles change years before periods stop. What perimenopause does to sleep, mood, weight and bone.
Cycle
Postpartum recovery: the first six months
Eating, moving and sleeping after birth — with realistic expectations and clear signs for when to call a doctor.
Habits
Food shopping: the decisions that matter
What you eat this week was mostly decided in the supermarket. A list method and the three labels worth reading.