Scientists have discovered a new tell-tale sign of heart failure: a shortness of breath when you are bending over, such as when you're tying your shoe laces.
The scientists from UT Southwestern Medical Centre have even given a name to the symptom they discovered: bendopnea.
Breathlessness isn't a risk factor for heart failure, but a symptom that the condition may be worsening, they point out. Around 10 per cent of patients living with heart failure have an advanced condition, and bendopnea may be an indicator.
Patients they've identified with bendopnea have a build-up of fluids that raise blood pressure levels.
(Source: Journal of the American College of Cardiology: Heart Failure, 2014; 2: 24)