If you are leaving your job because of adverse circumstances, be wary of discussing it with a prospective employer. If you do, try to put it in a positive light and express that you are just ready for a change. Life will always have negative aspects to it, but if you can turn them into positives, you will show your interviewer that you are upbeat and determined to find success.
Recruiters are looking for positive people. If you focus on negative experiences, you may be viewed as a potential troublemaker or whiner. Only discuss negative experiences if the interviewer asks you to do so.