Medical glossary
227 words and abbreviations, explained without jargon. Every one of them also appears inside our articles — hover or tap the dotted underline and the definition comes to you, so you never have to leave what you were reading.
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- LDL cholesterolLDL, Low-density lipoprotein, Bad cholesterolLDL cholesterol is the particle that carries cholesterol from the liver out to the tissues and deposits it in artery walls along the way. It is the number that treatment aims at, and lowering it reliably lowers the risk of heart attack and stroke.
- Learned helplessnessGiving up trying to change a bad situation after repeatedly having no control over it. The theory has since been revised: passivity is the default, and learning that you have control is what overcomes it.
- Lesion