As a teenager, what difficult decisions are you faced with?

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2 Are you an adult?

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4 As a teenager, what difficult decisions are you faced with?

5 Smoking Cigarettes 20% of teenagers have smoked in the past 30 days 13% tried tobacco before the age of 13 males more than females racial breakdown: white, hispanic, black

6 Carrying a Weapon 5% of teenagers have carried a weapon in past 30 days males more than females racial breakdown: black, white, hispanic

7 Fighting at School 12% have fought at school in the past year males more than females racial breakdown: black, hispanic, white

8 Drinking Alcohol 27% report binge drinking 19% report trying alcohol before 13 males more than females racial breakdown: white, hispanic, black

9 Smoking Marijuana 17% report having used marijuana in past 30 days males more than females racial breakdown: black, hispanic, white

10 Shoplifting 33% report having shoplifted before 89% report knowing someone who has shoplifted 25% of shoplifters are teenagers

11 Sex with contraception 47% have ever had protected sex 7% had sex before age 13 males more than females racial breakdown: black, hispanic, white

12 Unprotected sex 13% have had unprotected sex males more than females racial breakdown: black, hispanic, white

13 Multiple Partners (more than 4) 17% have had sex with more than 4 different people males more than females racial breakdown: black, hispanic, white

14 CE Unit 6 The Teenage Brain

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16 Brain Facts DO NOT WRITE The human brain weigh about 3 lbs If the brain does not receive blood for 10 seconds you will become unconsious The brain take 20% of the oxygen that you breathe in There are over 100 billion neurons in your brain

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18 Your brain stops growing around the age of 18 The brain is approximately 60% fat A headache is not usually pain in your brain, but mostly in the nerves, muscles and blood vessesl that cover the head and neck

19 Vocabulary Notes

20 Neuron cells that transmit messages 3 kinds: sensory: carry impulses from sens organs to brain motor: carry impulses from brain to muscles interneurons: connect sensory and motor neurons

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22 dendrite part of the neuron branch out and gather impulses from environment

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24 axon part of neuron carries impulses away from neurons axon + dendrites = nerves

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26 synapse location where neuron transfers a message to another cell connections that are lost if not used

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28 cerebrum grows and develops rapidly from ages 0-10 begins to lose mass in late 30 s largest part of the brain

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30 medulla oblongata lower half of brainstem develops while still in the womb

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32 hypothalamus responsible for the start of puberty increases hormone levels to begin changes in adolescents

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34 drug can interfere with brain development can kill or damage parts of the brain

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36 dopamine production increases during puberty can give a positive feeling even if great risks are taken

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38 stimulant legal: nicotene, ritalin, weight loss pills, energy drinks illegal: meth, speed, ecstasy

39 depressant legal: alcohol, codeine, morphine illegal: marijuana, heroin,

40 When does your brain grow? 1st major growth: between ages 0 and 3 2nd major growth: between ages 11 and 12

41 after growth, synaptic pruning occurs brain gets rid of connections that are not needed brain strengthens connections that are used often occurs most in early childhood and again in adolescence

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44 brain is not fully mature until mid to late 20 s female brains tend to mature earlier than males

45 DO NOT WRITE Death by injury between ages of is six times what it is between ages Crime rates among young males are highest between ages Why?

46 Why do teens take risks? the cortex is one of the last regions to develop located in frontal lobe responsible for reasoning, planning, impulse control and judgement not complete until between 25-30

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48 DO NOT WRITE What is dopamine? What part of the brain is responsible for impulse control and judgement? When is your brain finally done developing?

49 How do your teenage years affect the rest of your life? The activities you engage in determine what synapses are kept in your brain ex: reading and exercising vs. laziness and video games use it or lose it

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51 teens are more emotional exposure to stress can cause changes in the brain and behavior hormones play a large role in the developing brain

52 teen brains are more sensitive to drugs/ alcohol the effects can be long lasting (days) or permanent

53 Basal Ganglia Text

54 How is the teenage brain different from an adult s? sleep regulation changes in brain increase the tendency to stay up late sleep deprivation results in: irritability depression impulsive behavior

55 intellectual ability no different from an adults adolescent years are the easiest to learn