As a result, some blood leaks backward with each heartbeat. In some people, the condition is mild and doesn’t need treatment. People with moderate or severe regurgitation may need surgery to repair or replace the valve and improve heart function.
Some of the blood in your heart isn’t flowing the right way if you have mitral valve regurgitation. Learn the signs and what you can do about it.
"why" can be compared to an old Latin form qui, an ablative form, meaning how. Today "why" is used as a question word to ask the reason or purpose of something. This use might be explained from a formula such as "How does it come that ...". If you meet an old friend of yours, whom you never expected to meet in town, you can express your surprise by saying: Why, it's Jim! This why in the ...
11 Why is it that everybody wants to help me whenever I need someone's help? Why does everybody want to help me whenever I need someone's help? Can you please explain to me the difference in meaning between these two questions? I don't see it.
9 1) Please tell me why is it like that. [grammatically incorrect unless the punctuation is changed. Please tell me: Why is it like that? The question: "Why is [etc.]" is a question form in English: Why is the sky blue? Why is it that children require so much attention? Why is it [or some thing] like that?
Why don't you give me that book? Why don't you go to the store and get some more milk? Why don't you make me a sandwich? In these examples, the speaker is clearly not asking for the reason the listener is not doing the action in question.