b.)diet
You can't control your age obviously.
You can't really control your family.
You can't control your gender. Gender is coded into your DNA.
To understand the role of social health in your own life, think about the last time you were really sick and had to miss out on your usual daily activities. After a few days of lying in bed and not being able to participate in your favorite sports or hobbies or see your friends, you probably felt a little crazy. It's true that the emotional support and intellectual stimulation we receive in relationships with others helps us maintain a sense of belonging, which is a basic human need.
The answer is body's line of defense. The first line of defense which includes physical as well as chemical barriers would defend the body from infection. It would include the tears, cilia, stomach acid,urine, white blood cells,mucus and the skin. The skin is the largest organ and would act as a barrier from pathogens. If first line of defense won't work the second line will then be activated.
I’m not sure what pro-life argument to add. Science suggests that fetuses don’t feel pain until the 6th month. They’re not aware that they’re alive. They have neurotransmitters or spinal fluids, their spine is barely developed until then, which is why most abortions aren’t done after that period. Roe vs Wade act is a human right. Other than that, the only excuses you could make for being pro-life is religion, but that isn’t fact so only use that in your writing if it’s a biased report.