• Exercise
• Medications
• Disease
• COPD
• Angina
• URTI
• Anxiety
• Young age (children)
• Smoking

A slow respiratory rate may be caused by;

• Physically fit
• Medications/drugs
• Enhanced body relaxation

• Medications/drugs if person can’t “catch breath”
• Angina

Conditions or symptoms that require medical referral include:

• Upper respiratory tract infections
• Disease (i.e., chronic obstructive pulmonary disease)
• Shortness of breath