What kind of service project would improve the life expectancy of the nations with the lowest life expectancy in the world? why is gender balance an important factor in determining the health of a nation? how does social isolation contribute to poor health? how do grants make communities healthier? why are facts an important part of a persuasive argument?

Service projects that provide greater access to aid programs and organizations are the kind to improve the life expectancy on the nations with lowest life expectancy. The public and private health aid brings care that responds to deadly illnesses and diseases that are easily preventable and treatable. Vaccines and medical services improves the life expectancy of a nation.

Gender balance is an important factor in determining the health of a nation. Gender is an important health determinant because biological differences between men and women lead to differential health outcomes. With gender balance, biologically specific health needs will be equally accommodated.

Social Isolation contribute to poor health. A deficit in normal social interaction is associated with negative health outcomes. It leads to depression, cognitive decline and sleep problems which leads to deleterious health effects. It has a clear linkage to increased cardiovascular morbidity and mortality rates, neuroendocrine and cognitive functioning problems.  

Grants help make communities healthier. Competitive health grants can protect and improve human health and quality of life  by creating and funding projects that target resources to help communities at risk, study and reduce environmental and human health risks, empower community-based projects and advance emergency preparedness.  

Facts (that can be proven) are important part of persuasive argument because it solicits shared and relevant values, supports the arguments with strong, evidential support and invites the audience/ readers to accept the writer's conclusion as purposeful, precise and  reliable.