Guides
Breathing guides for calm, sleep and focus
Short, practical answers you can use in the next five minutes, with or without the app. Every guide starts with the answer, then shows you exactly how, with timings and sources.
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Calm down
Steady yourself in a minute or ten
How to calm down fast: a 60-second plan
Lengthen the exhale, ground yourself with 5-4-3-2-1, and know when it is more than stress. Free timer included.
How to calm nerves before a presentation
A 10-minute countdown for talks, interviews and big meetings: box breathing at T-10, one long exhale at T-0.
Box breathing: how to do it (with a free timer)
In 4, hold 4, out 4, hold 4: the exact method, how long to keep going, and when it beats a long exhale.
Sleep
Falling asleep, waking at night, winding down
Woke up at 3am and can’t get back to sleep?
No clock, no feed: breathe 6 in, 8 out with your eyes closed, then use the 20-minute rule. Plus the clock-change week.
I can’t sleep at night — what should I do?
A step-by-step wind-down for when your body is tired but your mind will not stop.
4-7-8 breathing for sleep: how to do it properly
The exact count, how many cycles (with the maths), what the evidence says, and a free timer.
Breathing techniques to fall asleep faster
Which patterns actually help, why the exhale does the work, and how long to practise.
How to stop racing thoughts at bedtime
Why your brain starts working the moment you lie down, and how to give it something else to do.
A wind-down routine that takes ten minutes
The shortest evening routine that still works — and why long ones get abandoned.
Work & choosing an app
Focus resets, and an honest look at the alternatives
Breathing resets for creators and remote workers
Calm before you record, a 1-minute reset between deep-work blocks, and a clean end to the working day.
Free breathing apps with no subscription, compared
Six iPhone breathing apps checked on price, ads, privacy label, Apple Watch and languages (15 Oct 2026).
How breathing works
The respiratory system, explained
The respiratory system: parts, functions and how it works
Every part from nose to alveoli, what it does, how a breath travels, and the one part of the system you can steer on purpose.
Human respiratory system diagram, labelled and explained
A free labelled diagram from nose to alveoli, what each label means, and an easy way to draw and remember it.
Respiratory system for kids: how lungs work, with fun facts
How lungs work in kid-sized language, fun facts with real numbers, an easy experiment, and a calming balloon breath.
How the circulatory and respiratory systems work together
The heart moves the blood, the lungs refresh it. The loop in one diagram, and why your pulse shifts with every breath.
Respiratory system diseases: types, symptoms and when to get help
Asthma, COPD, infections and more in plain English: the main types, which symptoms to check, and what breathing exercises can and can’t do.
Respiratory care: what it means, and daily lung care at home
What respiratory therapists do, the daily habits that protect your lungs, and what breathing exercises really do for lung capacity.
Diaphragmatic breathing: how to do belly breathing properly
The hand-on-belly test, lying and sitting versions, how long to practise, common mistakes and a free timer.
Pursed-lip breathing: how to do it and when it helps
In for 2, out for 4 or more, like cooling hot soup. The steps, who it helps, when to use it, and a free timer.
How many breaths per minute is normal? Respiratory rate explained
12 to 18 for a resting adult. How to count yours, children’s numbers, warning signs, and the breaths-per-minute of every ATHA pattern.
Nose vs mouth breathing: which is better, and why it matters
What your nose does that your mouth can’t, the downsides of mouth breathing, and what to do if your nose is blocked.
Breathing basics
Looking for one technique?
Box breathing, 4-7-8, coherence (5-5), extended exhale and six more, each with exact timings and when to use it: Breathing techniques with exact timings →
Planning more than your breathing? The developer hub has guides to organizing your life when you don’t know where to start, small daily rituals that make life feel organized and posting consistently as a creator.
These guides are for everyday wellbeing and are not medical advice. In an emergency, call your local emergency number.
Reading helps. Breathing helps faster.
Every guide maps to a practice you can start in ATHA in one or two taps.
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