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Learn about the three domains of the health triangle, the role of genes in heredity and health risks, and the impact of high-risk behaviors on overall health. Discover the concept of epigenetics and explore a family tree diagram to understand inherited non-communicable diseases.
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Bellringer • What are the three domains of the health triangle? Give a brief description of what each one means? • What acronym do we use for setting goals? Tell me what each of the letters mean.
Bellringer Answers 1. 2. Social Physical Mental/Emotional
Heredity and Health Risks Lesson 3 & lesson 4
What do you know? GENES What are they?
Genes A unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
Where are genes located in the body? • Cell • Nucleus • Chromosome • DNA • Genes
Heredity • Passing of genes from one generation to the next • Inheriting your parents genes • Example: Short or tall, brown or blond hair, green or blue eyes • Mutations (changes) in genescan cause health problems • High risk behaviors can encourage mutations to lead to diseases
Mutations in genes • Mutations occur from birth or over a lifetime from chemicals or radiation • Two copies of each gene • Dominant or Recessive • Dominant: show their effect even if there is just one mutation in one copy of that gene; one mutation dominates the normal copy and the characteristic shows itself • Mom has red hair and dad has black hair, you will have black hair • Recessive: genes that manifests only if there is no dominant gene • Mom and dad both have red hair, you will have red hair
Health Risks • Form a group with your row of desks. Each group will receive a sheet of paper. Think of what the phrase health risks means and write down your groups definition at the top of the paper. Underneath the definition, create a list of words that come to mind when you hear the phrase HEALTH RISKS.
Recognizing Risk Behaviors • The Centers for Disease Control and Prevention (CDC) has identified 6 risk behaviors that account for most of deaths and disability among young people under age 24 • Risky behaviors can lead to heart disease, cancer, and other serious illnesses later in life • Tobacco use • Unhealthy dietary behaviors • Inadequate physical activity • Alcohol and other drug use • Sexual behaviors that may result in HIV infection, other sexually transmitted diseases (STD) and unintended pregnancies • Behaviors that contribute to unintentional injuries and violence
Cumulative risks • Related risks that increase in effect with each added risk • High-fat meals (McDonalds, Wendy’s, fried food) • Driving while texting • The more high risks behaviors you take part in the negative consequences become even greater
What are your high risk behaviors? • THINK, PAIR, SHARE • Think about high risk behaviors that you take part in • Not wearing a seatbelt/helmet • Sedative lifestyle • Smoke cigarettes • Eat a lot of processed foods • How are you going to stop your high risk behavior?
Abstaining from high-risk behaviors • Abstinence • Deliberate decision to avoid high-risk behaviors, including sexual activity and the use of tobacco, alcohol, and other drugs • By abstaining from high-risk behaviors your health triangle will become more balanced
Non-Communicable Diseases • Non-communicable diseases can be inherited through genes • Diseases include: • Cystic Fibrosis • Sickle Cell Anemia • Marfan Syndrome • Huntington’s Disease • Hemochromatosis • Addiction • Mental Illness
What is this called? EPIGENETICS
Family Tree Diagram (70 Points) • Make a family tree going all the way back to your grandparents (if you are able to go further you can) • Only use family members that you are related through blood (not step sisters/brothers or relationships through marriage) • Include: • Major non-communicable physical and/or mental conditions • Causes of death/age of death (if known) • Squares= male; circles= female (or other design if showed in “legend”) • Provide a legend with each disease so that it can be easily read