What region in NMR spectrum should I choose for integration?

[Leonid92]

TL;DR

What region in NMR spectrum should I choose for integration?

Hi all,
I have nuclear magnetic resonance spectrum. The vertical axis is intensity, and the horizontal axis is index. I need to find integral under the peak. But I am not sure, what region should I choose for integration - region 1 or region 2? Please find attached the spectrum.

 

[Ygggdrasil]

That depends on what exact question you're trying to answer by integrating the spectrum.