I advise against practicing this style of breathwork if you are dealing with any of the following:
• Epilepsy
• High blood pressure (in case of prescription medication)
• Coronary heart disease (e.g. Angina Pectoris; Stable Angina)
• A history of serious health issues like heart failure or stroke
If you are pregnant, I advise against practicing the full Stoic Breath. There are increased adrenaline levels associated with breath hold that may adversely affect the health of the baby. You can of course follow along to the meditation and be fully aware of your breath and body.