There are several reasons a life insurance policy may be denied, including:

1. The applicant's health - This can be anything from someone with uncontrolled diabetes or someone with cancer having only months to live. 

2. The applicant's health has not been stable for a certain length of time. This can range from someone who had very high blood pressure and only been on medication for one month, to someone with MS who has had a recent major exacerbation.

3. The applicant is ...