1. Pulmonary Arterial Hypertension (PAH)

Pulmonary Arterial Hypertension (PAH) is a serious condition where the blood vessels in the lungs become narrowed, making it harder for blood to flow. This increased pressure in the pulmonary arteries forces the heart to work harder, which can lead to heart failure over time. Common symptoms include breathlessness, fatigue, and chest pain. PAH can be caused by various factors, including genetic conditions, certain medications, or other diseases. Early diagnosis and treatment are crucial to manage the condition and improve quality of life.