BreathWork guides you through five scientifically-backed breathing patterns with a smooth animated circle that expands and contracts in time with each breath. Box Breathing uses a four-four-four-four rhythm of equal inhale, hold, exhale and hold phases used by Navy SEALs to reduce stress and sharpen focus. The 4-7-8 Relaxation technique activates the parasympathetic nervous system and is widely recommended for falling asleep faster. Wim Hof breathing uses rhythmic deep breathing followed by a breath hold to boost energy and immune response. Belly Breathing uses a slower four-six ratio that triggers deep physical relaxation and reduces anxiety quickly. Energising Breath uses rapid equal two-two cycles to increase alertness and mental clarity. For each pattern the animated circle grows and shrinks with the breath, a countdown shows seconds remaining in each phase, and round dots show your progress through the session. When the session completes a summary screen lets you repeat or choose a different pattern. No account, no internet, no permissions required.