Table 1.

Search terms.

Breathwork search terms	*Breathwork, *breathing exercise, *breathing technique, *breathing practice, *breath regulation, *pranayama, *mindful breathing, *paced breathing, *controlled breathing, *slow breathing, *fast breathing, *hyperventilation, *deep breathing, *metronome breathing, *nasal breathing, *mouth breathing, *diaphragmatic breathing
Anxiety search terms (DSM-5 classification system)	*Anxiety, *anxiety disorders, *stress disorders, *stress, *anxiety, *phobia, *phobic, *panic, *stress disorder, *agoraphobia