HyperEcho is a multi-centre longitudinal observational study, to investigate whether baseline transthoracic echocardiography along with routine data collected in the hypertension clinic can guide clinicians to better manage, and improve risk stratification for cardiovascular disease in young adults with hypertension. Participants are characterised as young adult patients aged between 18 to 40 years old and referred to the hypertension clinic to manage their blood pressure. The study visit will be carried out during the planned routine visit of the participants to the hypertension clinics of NHS trusts within England. Routine data will be collected by the assigned nurse for the hypertension clinic as part of the clinical service, and research participation will not affect the clinical progress of the participant. The additional research component to the clinic will be asking the participants for their consent to undergo a research echocardiography scan if it has not been a part of their clinical assessment. Participants will also be asked to consent to the use of their data that has been collected in the hypertension clinic, such as; referral letters, medical history, 24-hour blood pressure monitoring report, ECG, blood samples, body fat composition, and dietary questionnaire. In addition to this, participants will be asked to consent to further review of their data and medical notes during their follow up visits (up to 10 years).