(HealthDay News) -- Pulmonary hypertension occurs when the arteries inside the lungs narrow, restricting blood flow and increasing blood pressure in those arteries.
The U.S. National Heart, Lung, and Blood Institute offers these guidelines to help manage pulmonary hypertension:
Pentagon Drops Flu Vaccine Requirement For U.S. Military
Breakdown In Federal Health Tracking Leaves U.S. Vulnerable To Outbreaks, Pandemics, Experts Warn
RFK Jr. Says Fewer Flu Vaccines for Kids May Be a 'Better Thing'
They Spent Hours In A Room Full Of Flu Patients And Walked Out Healthy — Here's How