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Practical guides, fully referenced

How-to guides on breathing, worry, sleep, caffeine and exercise, each built on verified studies.

Sleep and anxiety: why a bad night makes tomorrow harder

Sleep loss raised next-day anxiety while deep sleep reduced it. Practical ways to protect deep sleep.

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Magnesium, L-theanine and ashwagandha for stress: an honest evidence review

Some early results are interesting, none of the evidence is strong, and safety matters. What verified studies actually show.

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10 thinking traps that fuel anxiety, and how to reframe them

Catastrophizing, mind reading, fortune telling and seven more cognitive distortions, with questions to test each one.

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Exercise for anxiety: what two meta-analyses show

Aerobic exercise reduced anxiety in two meta-analyses. What the studies found and how to start small.

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Caffeine, anxiety and sleep: how late is too late?

High doses can provoke anxiety in sensitive people, and caffeine six hours before bed still disrupted sleep in a placebo-controlled study.

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Resonance breathing at 6 breaths a minute: the evidence behind HRV breathing

A meta-analysis of 24 studies links HRV biofeedback breathing with large reductions in stress and anxiety. How it works and how to practise without a device.

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The physiological sigh: what the 2023 breathwork study actually found

Cyclic sighing beat mindfulness meditation for mood in a one-month randomized study. Here is what was tested, what wasn’t, and how to practise it.

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