"Science can really show that the way we choose to think and act has a huge impact on how we feel - and how we handle the difficulties we encounter," Lucy Hone says.

Christchurch in New Zealand is a hard-hit city. But this is also where psychologist Lucy Hone chooses to conduct her research. The institute works purposefully towards all schools, and by extension the entire community, so that as many people as possible can be prepared when disasters happen.

And it is important to take care of what is important - for you.

- It is not about ordinary "self-help". This has been tested scientifically on large numbers of people in different situations and contexts, so we can safely say that it really helps when you encounter difficulties.

See Correspondents on how to move forward in life after a disaster.