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2. Heart failure with preserved ejection fraction - Wikipedia

   en.wikipedia.org/wiki/Heart_failure_with...

   Heart failure with preserved ejection fraction (HFpEF) is a form of heart failure in which the ejection fraction – the percentage of the volume of blood ejected from the left ventricle with each heartbeat divided by the volume of blood when the left ventricle is maximally filled – is normal, defined as greater than 50%; [1] this may be measured by echocardiography or cardiac catheterization.

3. Obesity - Wikipedia

   en.wikipedia.org/wiki/Obesity

   According to one study, factors like these may play as big of a role as excessive food energy intake and a lack of physical activity; [104] however, the relative magnitudes of the effects of any proposed cause of obesity is varied and uncertain, as there is a general need for randomized controlled trials on humans before definitive statement ...

4. Glossary of medicine - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_medicine

   Alzheimer's disease – (AD), also referred to simply as Alzheimer's, is a chronic neurodegenerative disease that usually starts slowly and worsens over time. [15] [16] It is the cause of 60–70% of cases of dementia. [15] [16] The most common early symptom is difficulty in remembering recent events (short-term memory loss). [15]