Which factor is most likely to raise the premium of a life insurance policy?

A long-term smoking history is likely to raise the premium of a life insurance policy significantly due to the associated health risks that smoking poses. Insurers assess the likelihood of claims based on the applicant's health and lifestyle choices. Smokers are at a higher risk for several serious health conditions, including heart disease, cancer, and respiratory illnesses, which can lead to premature death. Therefore, insurance companies attribute a greater risk to individuals with a history of long-term smoking, resulting in higher premiums to compensate for that increased risk.

On the other hand, factors such as regular exercise habits, higher educational qualifications, and having a stable job typically reflect a healthier lifestyle and lower risk profiles. These factors might lead to lower premiums or less stringent underwriting requirements because they indicate a potential for longer life expectancy and better overall health.