RecruitingGenetic interventionRutgers University Study of the Genetics of Pulmonary HypertensionThe goal of this observational study is to learn more about how genes impact the risk of pulmonary hypertension. Anyone 18 or older living in the US is eligible, and a diagnosis of PH is NOT required. Study participation is online, and it takes about 20 minutes to complete health surveys and request a saliva collection kit sent through US mail. In return, study participants may opt to receive information about their genetic ancestry at no cost.