Barrier methods of contraception would include:
1. Diaphragm
2. Sponge
3.Cervical cap
4.Male condom
5. Female condom
6. Spermicide.
Barrier methods of family planning are physical or chemical barriers that function to prevent conception. They have some advantages and disadvantages. For example some advantages of the diaphragm are that it has no effect on a woman's natural hormones, it can be used while breastfeeding beginning 6 weeks after birth. Some disadvantages are that there is increased risk of toxic shock syndrome if diaphragm is left in for more than 24 hours. Also it may have to be used in conjunction with another barrier method to enhance its efficacy.
Answer:BBBBBBBBBBB
Explanation:most older people smoke
Smoking / drug habits, take longer breaks (15 minutes max) on school / work
Try to not do stressful things when possible
Herd immunity is a form of indirect protection from infectious disease that can occur with some diseases when a sufficient percentage of a population has become immune to an infection, whether through vaccination or previous infections, thereby reducing the likelihood of infection for individuals who lack immunity.