what the research honestly says about slow breathing

In 2018, a team at the University of Pisa went looking for every rigorous study on slow breathing. They began with 2,461 papers. After applying their standards, fifteen remained. That number is worth sitting with — the honest evidence base is small.

Within those fifteen, the picture is consistent. Breathing slower than about ten breaths a minute was linked with steadier heart rhythms, calmer brain-wave patterns, and people reporting more ease and less agitation — in healthy adults, in small studies.

What the pranayama traditions have taught for centuries, the instruments have so far partly confirmed — no more, and no less, than that.

The sixty-second sit on these pages moves at roughly five breaths a minute, with the out-breath longer than the in — the same shape those fifteen studies kept finding. It costs one minute and requires no equipment you were not born with.