CLEAN : File images of the Costa Concordia shipwreck

The video begins with greetings and addressing technical issues. It then moves on to discuss technical terms and concepts, including checking fingernails. Finally, the conversation shifts to health-related topics, specifically focusing on LDL.

How does the use of 'Yeah' contribute to the flow of the dialogue?

What might the speaker mean by 'Check my fingernails' in this context?

What does the phrase 'easy. When Dante. Bad LDL or no?' suggest about the topic of conversation?