VitaminsExplainer
Vitamin B12 Deficiency: Symptoms, Causes and Who Is at Risk
Common signs of vitamin B12 deficiency, why it happens, who is more at risk, and why a blood test, not symptoms alone, is needed to confirm it.
Based on NHS
3 min read
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From what's on your plate to how you sleep, find practical guides, videos and tools grouped by topic.
Nutrition and Healthy Eating
Practical, evidence-informed guidance on everyday eating: balanced plates, smart drinks, snacks and reading food labels.
8 guides
Sleep and Sleep Science
How much sleep you need, evening habits that help, and when poor sleep is worth discussing with a doctor.
2 guides
Vitamins and Nutritional Deficiencies
What vitamins and minerals do, signs of common deficiencies, food sources and when supplements make sense.
4 guides
Preventive Health and Lifestyle Diseases
Early warning signs, screening and lifestyle steps that lower the risk of diabetes, heart disease and other conditions.
6 guides
Healthy Habits and Lifestyle
Small daily routines that add up: hydration, movement, screen time, sleep timing and building habits that last.
9 guides
Weight Management
Understanding BMI, energy needs and sustainable habits for a healthy weight, without crash diets.
5 guides
Skin and Body Care
Practical skin, hair and nail care: sun protection, everyday routines and safe at-home beauty care.
2 guides
Mental Health and Wellbeing
Everyday mental wellbeing: stress, mood, sleep and connection, plus where to find support when you need it.
3 guides
Latest guides
Clear answers, backed by sources
Each guide starts with the short answer, then explains the why, the how, and when to see a doctor.
Vitamins
PreventionExplainer
Signs of High Blood Sugar and When to Get Tested
The common signs of high blood sugar, why diabetes can develop without symptoms, and which tests check your levels — explained simply.
Based on CDC · NHS · NIDDK
3 min read
SleepHow-to guide
How to Sleep Better: 7 Evening Habits That Help
How to sleep better at night with seven evening habits: consistent timing, light, screens, caffeine, meals and a calm wind-down routine.
Based on CDC · NHLBI · NHS
2 min read
Mental wellbeingChecklist
5 Evidence-Based Steps to Better Mental Wellbeing
Five everyday steps, recommended by the NHS, that can lift mood and wellbeing: connect, be active, learn, give and pay attention to the present moment.
Based on NHS
2 min read
FitnessHow-to guide
Brisk Walking for Health: Benefits, Pace and How to Start
Why brisk walking is one of the easiest ways to get active, how fast is brisk enough, and simple ways to turn walking into a daily habit.
Based on NHS
2 min read
Free health tools
Check, plan and convert in seconds
Practical calculators with the method and limits explained. They run in your browser, so nothing you type is sent anywhere.
Daily Water Intake Guide
See official reference values for how much water adults need each day, how much comes from drinks, and when you may need more.
Sleep Calculator
Find bedtimes that fit your wake-up time, or wake-up times if you go to bed now, based on 90-minute sleep cycles.
Age Calculator
Work out an exact age in years, months and days, total days lived, and days until the next birthday.
Health Unit Converter
Convert weight, height, temperature, fluids, food energy, blood glucose (mmol/L ↔ mg/dL) and HbA1c (% ↔ mmol/mol).
BMI calculator
Method and limitsEnter your height and weight to see your BMI. For adults aged 18 and over.
On YouTube
Your daily health dose, in under a minute
Quick, practical tips from the Healthy Primix channel. Press play to watch right here.
VitaminsShort
3 Signs of Vitamin B12 Deficiency You Shouldn’t Ignore
Watch on YouTube (opens in a new tab)PreventionShort
3 Silent Signs Your Sugar Is High (No Pain, No Warning)
Watch on YouTube (opens in a new tab)Nutrition
14 Quick and Nutritious Snack Ideas for a Healthy Lifestyle | Easy and Delicious Recipes
Watch on YouTube (opens in a new tab)
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Essential guides worth bookmarking
Evergreen basics that pair with our most-used tools.
What Is BMI? How It's Calculated and Its Limits
Body mass index explained: the formula, adult BMI categories, lower cut-offs for some ethnic groups, and the limits of BMI as a health measure.
How Much Water Should You Drink a Day?
What official guidance says about daily water intake, why '8 glasses' is only a rough guide, which drinks count, and when you need more.
How to Sleep Better: 7 Evening Habits That Help
How to sleep better at night with seven evening habits: consistent timing, light, screens, caffeine, meals and a calm wind-down routine.
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