Characteristics, Phenotypes, and TRAITS of Heart Failure With Preserved Ejection Fraction (TRAITS-HFpEF)

This study is working to better understand a type of heart failure where the heart muscle squeezes normally but the heart itself is stiff and cannot fill with blood properly. This is called heart failure with preserved ejection fraction (HFpEF). Researchers are collecting detailed information about patients' symptoms, test results, and physical characteristics to identify patterns and guide future treatments for this poorly understood condition. **You may be eligible if...** - You are 18 years old or older - You are a patient attending the specialist HFpEF clinic at Manchester University NHS Foundation Trust (MFT) - You are able to provide informed consent in English, either verbally or in writing **You may NOT be eligible if...** - You are under 18 years old - You are currently imprisoned - You are unable to provide informed consent in English Talk to your doctor to see if this trial is right for you.