Breathe Hard to Breathe Easy: Online Breathwork-Assisted Therapy for Social Anxiety

Inclusion Criteria: * Fluent in the English or Dutch language * Aged between 18 and 65 * LSAS score ≥50 * Written informed consent Exclusion Criteria: * Hypotension (diastolic \< 60 mmHg; systolic \> 90 mmHg) or hypertension (diastolic \> 90 mmHg; systolic \> 140 mmHg) * History or presence of psychotic or bipolar disorders or first-degree relatives suffering from this * History of respiratory or cardiovascular/heart problems or disease, cerebral aneurysm * History of fainting or syncope, epilepsy or seizures * History of panic disorder or panic attacks, * Having had adverse reactions with prior breathwork sessions (i.e., fainting), * Pregnancy, thinking one might be pregnant, trying to get pregnant, or breastfeeding * Any problems affecting the ability to pace breathing (i.e., active/chronic respiratory infection including blocked nose/cough/cold/fever, etc.), breathlessness, abnormally slow breathing (bradypnea), or abnormally fast breathing (tachypnoea), any other physical/mental health conditions or current life events impairing the ability to engage in activities involving breath control * Taking any regular medication other than the contraceptive pill, including medications to reduce blood pressure (i.e., Ramipril or other ACE-inhibitors) and beta-blockers (i.e., Propranolol).