Personal and Community Health

Reviews 12 and 13 (Unit 6)

Information: Carrying capacity is how

big a population can become based on the limiting factors affecting it.

Scenario: A scientist grew a population of paramecia in a 500 mL beaker. The scientist’s estimates of the population over the two weeks are shown.

Question: Between what 2 days did the paramecium population first reach the carrying capacity of the environment?

Daily Catalyst- Wednesday

Day Population estimate

2 300

4 500

6 2,000

8 3,500

10 8,500

12 5,500

14 7,500

Study conducted in

2007 Children from the

Southern United States born in 1999 had a lower life expectancy than children born in 1980

Why?

Life Expectancy

Poor health decisions

Young people

under the age of 18 should get at least an hour of exercise each day

For at least 3 days that week, the exercise should be vigorous (140 beats/minute)

Step 1: Staying fit

Aerobic and Strength training Increases the amount ------------- Good for your muscle tissue of oxygen your heart pumps and blood sugar maintenance

Types of exercise

Yoga’s not just for hippies

Exercise Break!

Where and how can you get an hour’s worth of

exercise daily?

Thought Question

In Louisiana, nearly 30% of adults have

become obese with body mass indices (BMI) of 30 or greater

BMI= (weight in pounds x 703)/(height in inches)2

Step 2: Eating a proper diet

Each person uses a specific amount of food

energy to get through the day The amount varies with your weight, body

composition (the proportions of muscle and fat to your total weight), gender and activity level

What does “proper diet” mean?

You can quantify your energy needs with these http://www.mypyramid.gov/mypyramid/index.

aspx

Calorie Calculators

1. 1 large apple2. 1 peanut butter and jelly sandwich3. 1 fast-food burrito4. 16 oz of non-diet soda5. How many meals of a burrito and a soda does

it take to exceed your calorie needs for one day?

6. How many hot chips are in one serving of hot chips?

7. How many grapes are in one serving of grapes?

Use the internet to figure out how many calories

are in…

Foods with low fat, low in sugar, simple and

natural have the lowest calories Portion size is also important

Lowest calorie foods

Grains- 1/3 – ½ of your calories Meat and beans- 1/3 of your calories Milk- needed for calcium (but sparingly) Fats and Oils- at most 20% of your calories Fruits and vegetables- at least 5 servings a

day

Major food groups

Based on your calorie needs, design a

nutritious meal plan for a day.

Thought Question

About 40% of school-aged children and young

adults don’t get enough sleep Average teen needs about 8.5-9.25 hours of

sleep each night

Step 3: Sleep

1. Have a regular bedtime

that allows you enough sleep, and stick to it.

2. Remove all distractions in your bedroom, reduce noise and light pollution.

3. Get adequate exercise during the day, but wind down in the hours before bedtime.

How to get enough sleep?

How can you organize your time so that you

can get to bed early enough? How can you arrange your sleep area so that it’s dark and quiet enough for you to fall asleep easily?

Thought Question

1. Don’t take on more than you can handle. 2. Budget your time. 3. Ask for help. 4. Get enough sleep and exercise.

Step 4: Stress Management

Name two ways you can reduce stress in your

life.

Thought Question

Brush teeth twice a day/floss once Wash hands often with soap and warm water

Step 5: Good hygiene and regular check-

ups

A. Sleep, diet, exercise and stress-managementB. Motivation, diet, exercise, and stressC. Sleep, vegetables, aerobic exercise, and

stressD. Calories, vegetables, exercise and rest

Four basic components of health maintenance are

A. Sustained exercise that lowers the heart rateB. Sustained exercise that raises the heart rateC. Exercise that includes weight lifting and

softball-playingD. Short bursts of intense activity

Aerobic exercise is best described as

A. 5-7.5 hoursB. 8-10.5 hoursC. 8.5-9.25 hoursD. There is no average number

How much sleep does an average teen need per

night?

A. 15 minutesB. 30 minutesC. 60 minutesD. 90 minutes

For how long should a teen exercise each day?

A. BMI stands for “body-mass index” and is a ratio of

weight and height. Valerie’s BMI means she is slightly overweight.

B. BMI stands for “body-muscle index” and is a ratio of muscle mass to height. Valerie’s BMI means she is probably a weight-lifter.

C. BMI stands for “balanced mind initiative” and is a way of reducing stress. Valerie’s BMI shows she has made good progress in reducing the level of stress in her life.

D. BMI stands for “basal metabolic inquiry” and is a way of measuring how fast the body burns calories. Valerie’s BMI means she will probably not develop diabetes.

Valerie has a BMI of 26. What is a BMI, and what does

Valerie’s mean?

Information: Bonobos and chimps are genetically equidistant

from humans. The traditional model of human sexuality asserts that humans evolved from chimps.

Scenario: Chimps are violent and aggressive. They do not pair-bond and copulate just for mating purposes. However, bonobos are kind and friendly. They copulate for a variety of reasons beyond mating and raise their young as a community.

Questions: 1. If it’s true that chimps are humans’ direct ancestors, what kinds

of behavioral adaptations would have allowed us to evolve?2. Do you think it’s possible humans evolved their sexuality from

bonobos instead of chimps? Explain your reasoning. 3. Most people believe humans are naturally-included toward

monogamy, however humans are the only apes that do so. Where do you think this idea came from and do you agree? Explain.

Daily Catalyst- Thursday