We need the data to do this problem
The answer is:
Age
This is because if your young your organs are not as developed. When your older your body handles more because it is developed fully.
By getting organic foods or knowing where you food came from and checking the ingredients. dont buy pre packaged meats because it can contain parasites and if you cook something make sure to cook it to at least 140 degrees to kill parasites<span />
Only condoms can protect against an STI. Only condoms have been proven to reduce the risk of getting some STDs. According to the HHS Office on Women's Health, the male latex condom is the best method for protecting against STDs, including HIV/AIDS. Polyurethane condoms are an effective alternative if either partner has a latex allergy.