2. Chapter 8 Personal Hygiene and Basic Healthcare
Lesson 8.1 Taking Care of Your Skin, Hair, and Nails Lesson 8.2 Common Skin Problems Lesson 8.3 Keeping Your Mouth, Eyes, and Ears Healthy

3. Taking Care of Your Skin, Hair, and Nails
Lesson 8.1
Taking Care of Your Skin, Hair, and Nails

4. Warm-Up Personal Hygiene and Health
How is personal hygiene related to good health?
Give one example of a disease or disorder related to poor personal hygiene.
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5. Your Skin The skin plays a very important role in keeping you healthy
Protects everything inside the body
Serves as a barrier for keeping out bacteria and viruses
Helps regulate body temperature
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6. Anatomy of the Skin The skin is the largest organ in the body
The skin consists of three layers
Epidermis
Dermis
Hypodermis
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7. Body Odor Your sweat glands produce perspiration, or sweat
Sweat can have a strong odor
Bathe daily and use deodorant to control body odor
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8. Hair Teenagers may experience hair problems
Oily hair
Dandruff
Some teenagers become infected with lice
Lice are easily transmitted from one person to another
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9. What are some strategies you can use to keep your hair healthy and looking good?
Wash your hair regularly to keep it clean
Eat a healthful diet
Use a medicated shampoo if you have dandruff
Avoid sharing combs with others
Treat your hair and clothing or bedding if you get lice

10. Nails Healthy nails are smooth, free of spots, and consistent in color
Always keep your nails dry and clean
Trim your nails regularly
Moisturize your hands regularly, including your fingernails and cuticles
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11. Lesson 8.2
Common Skin Problems

12. Click here for the “Formation of a Pimple” animation
Acne
Acne is a skin disease that causes pimples
Pimples are created when pores in the skin become clogged with oil
Oil and bacteria can leak into the skin, which causes infection and inflammation
Most teenagers suffer from acne at some point
Click here for the “Formation of a Pimple” animation
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13. Critical Thinking Acne
At some point, most teenagers get acne. Is there anything you can do to prevent acne breakouts and help them clear up quickly when they do occur? Give some examples.
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14. Eczema
A skin condition characterized by patches of red, itchy, dry, or swollen skin
Flare-ups can be triggered by colds or other minor illnesses, as well as irritating substances
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15. Skin Cancer
Most cases of skin cancer are caused by exposure to ultraviolet (UV) light
This invisible radiation comes from the sun, tanning beds, and sunlamps
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16. Nothing can be done to prevent sunburns.
Myth or Fact?
Nothing can be done to prevent sunburns.
MYTH
Fact: The simplest way to protect yourself is to stay out of the sun whenever possible.
Fact: You can wear clothing that protects any exposed skin.
Fact: You can wear sunscreen, which protects the skin by absorbing, reflecting, or scattering UV light.

17. Body Art Permanent skin decorations are called body art
Tattoos are designs on the skin made by inserting colored ink under the skin
Body piercing involves making a hole in the skin in which jewelry can be worn
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18. Related Health Problems
Needles used for piercings and tattoos can spread infections
Some people can have an allergic reaction to tattoo ink or jewelry worn in a pierced area
Think carefully before getting a tattoo or a piercing
Consider whether a piercing or a tattoo may have long-term consequences for jobs or relationships

19. Keeping Your Mouth, Eyes, and Ears Healthy
Lesson 8.3
Keeping Your Mouth, Eyes, and Ears Healthy

20. Oral Cavity The first area of your mouth is called the oral cavity
The mouth includes the lips, teeth, and tongue
A primary function of the mouth is to take in and chew food
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21. Understanding Teeth Teeth consist of three distinct parts
The crown is the visible portion of the tooth
The neck connects the crown to the root of the tooth
The root contains blood vessels and nerve endings
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22. A normal adult mouth contains 32 teeth.
What are the different types of teeth called?
Incisors
Canines
Premolars
Molars
Wisdom teeth
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23. Common Mouth Problems
Many people experience problems with their mouths
Tooth decay and cavities
Gum disease
Cold sores
Teeth misalignment
Bad breath
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24. Critical Thinking Preventing Mouth Problems
What are strategies you can use to prevent some of the most common teeth and mouth problems?
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25. Eyes
The eye is a complex structure that receives and focuses light for your brain to interpret.
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26. Common Vision Problems
Some people have vision problems
Nearsightedness
Farsightedness
Astigmatism
Presbyopia
These problems can usually be corrected with glasses or surgery
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27. Critical Thinking Protecting Your Eyes
What are simple strategies you can use to keep your eyes as healthy as possible throughout your lifetime?
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28. Ears
The ear receives sound as a series of vibrations, which are interpreted by the brain
Your ears also play a role in helping you keep your balance
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29. Parts of the Ear The ear has three main parts
The pinna (outer ear) helps bring sounds into the ear, where they enter the ear canal
The middle ear includes the eardrum and three small bones—the hammer, the anvil, and the stirrup
The inner ear includes the cochlea, which is a spiral tube, and converts sound vibrations into neural impulses
The inner ear also includes the semicircular canals, which are filled with fluid and help with balance

30. Common Hearing Problems
The most serious problem associated with the ears is permanent loss of hearing
Ear damage is often due to repeated exposure to very loud sounds
Hearing loss can also be caused by a ruptured eardrum
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31. Signs of Hearing Damage
Early signs of hearing damage include
Difficulty hearing relatively soft sounds
Difficulty understanding speech during telephone conversations
Pain or ringing in the ears
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32. Critical Thinking Protecting Your Hearing
What are some ways to protect against hearing loss? What can you do at home or in the workplace to protect your hearing?
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