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Atb #19 What are health risks associated with obesity? (2 complete sentences) Are there any health risks associated with being underweight? (2 complete.

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Presentation on theme: "Atb #19 What are health risks associated with obesity? (2 complete sentences) Are there any health risks associated with being underweight? (2 complete."— Presentation transcript:

1 Atb #19 What are health risks associated with obesity? (2 complete sentences) Are there any health risks associated with being underweight? (2 complete sentence)

2 Turn in Supertracker assignment

3 Pass Back Tests

4 Underweight Health Problems
Anemia =deficiency of red blood cells resulting in low energy or dizziness Heart irregularities Trouble regulating body temperature Nutrient Deficiencies Fragile Bones/ Osteoporosis Dizziness Low energy Impaired Immunity Death

5 Sensitivity & Kindness today

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7

8 What are we going to learn?
Objective 3 Standard a, b, & c. Explain how caloric intake and energy expenditure affect body weight. Evaluate the strengths and weakness of various body-weight indicators Explore the short and long term effects of poor nutrition and inactivity

9 Weight Management

10 How do you gain or lose weight?
Counter-balance calories in and calories out. Energy expenditure.

11 Ted Ed-Metabolism/Calorie
*Already watched*

12 REAL Weight loss To lose weight you must eat less calories than you use. THAT’S IT. We use calories each day by just living Basal Metabolic Rate (BMR):  the amount of energy expended daily by humans and other animals at rest. Rest is defined as existing in a neutrally temperate environment Fit 2 fat 2 fit abc clip (4mins)

13 How many Calories do I use each day?
How to calculate your estimated BMR (basal metabolic rate) Men: BMR = 66 + (6.23 x (weight x 1.15))+ (12.7 x inches) - (6.8 x age) Women: BMR = (4.35 x (weight x 1.20)) + (4.7 x inches) - (4.7 x age) “Typical pounds” = Take your lean weight and multiply by 1.15 for men, or 1.20 for women. *The 66 and 655 aren't typos. The BMR for women is less dependent on height and weight, which is why BMR is never less than about 1100 calories a day. Source Example: Mrs. Coats BMR would be 1,521…. But add exercise… Put this in your notebook

14 How exercise impacts BMR
Little to no exercise BMR x 1.2 Mrs. Coats’ would be 1,825 Light exercise (1 to 3 days per week) BMR x1.375 Mrs. Coats’ would now be 2,091 Moderate exercise (3 to 5 days per week) BMR x 1.55 Mrs. Coats’ would be 2,357 Heavy exercise (6 to 7 days per week) BMR x Mrs. Coats’ would be 2,633 Very heavy exercise (intense workouts 2x day) BMR x 1.9 Mrs. Coats’ would be 2,890

15 How many calories do I use each day?
AGE FEMALES MALES SEDENTARY MOD. ACTIVE ACTIVE 14 1800 2000 2400 2800 15 2200 2600 3000 16 3200 17 18

16 Michael Phelps eats 8,000-12,000 calories a day to keep up with his exercise needs. His workout routine burns about 1,000 calories per hour.

17 Metabolism is: Metabolism = How many calories you need based on how many calories you burn by living. The chemical reactions in the body's cells that convert fuel from food into the energy needed to do everything from moving to thinking to growing. How many calories your body uses each day.

18 Increase Your Metabolism
Build muscle! Muscle cells use more energy when “idle” than fat cells do, that way you are burning more calories when you aren’t exercising Drink water! Exercise more! Do something fun, increase your fitness, and lose weight all at the same time

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20 How to Lose Weight in a Healthy Way…
Eat Less/Eat Healthy & Exercise More The most weight that a person should lose in a week is 1-2 lbs

21 1lb fat = 3, 500 Calories

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24 Dieting Safety Don’t skip meals or starve yourself
Do not lose more than ONE pound per week Avoid “fad” diets If you think you have an eating disorder, seek help NOW Talk to your doctor before dieting! Good diets aren’t temporary—they are lifestyle changes that you can maintain forever

25 The Facts People who lose weight gradually and steadily (about 1 to 2 pounds per week) are more successful at keeping weight off. Losing more than 2 lbs per week is unhealthy and usually temporary (water weight). To lose weight, you must use up more calories than you take in. Since one pound equals 3,500 calories, you need to reduce your caloric intake by 500—1000 calories per day to lose about 1 to 2 pounds per week.

26 Definition of a Diet: Diet= the kinds of food that a person habitually eats.

27 Should Teens Diet? Dieting interferes with puberty
It’s normal and healthy for teens to gain fat before a growth spurt Teens who diet have an increased risk of: Developing an eating disorder Being obese as an adult Depression If you are eating healthy and getting plenty of exercise, you shouldn’t need to worry about your weight until you are an adult

28 Fad Diets The phrases food faddism and fad diet originally referred to diets and eating patterns that promote short-term weight loss, usually with no concern for long-term weight maintenance, and they enjoy temporary popularity.

29 Food Fad "Food fad" is a term originally used to describe simple, catchy diets that often focused on a single element such as cabbage, grapefruit or cottage cheese. In 1974, the term was defined as three categories of food fads. 1. A particular food or food group is exaggerated and purported to cure specific diseases. 2. Foods are eliminated from an individual’s diet because they are viewed as harmful. 3. An emphasis is placed on eating certain foods to express a particular lifestyle. Can you think of any examples?

30 Fad Diets

31 Why are Fad Diets appealing?

32 Hollywood Diet Commercial
HCG Diet

33 Healthy Weight Loss 1-2 pounds a week

34 10 Fad Diets

35 What are five ways to tell if a diet is a “Fad” diet?
If they are selling a product If it is not intended to be a lifelong diet If it says that exercise is not needed If it blames one food, or says one food will make you skinny If the diet cannot support itself with peer- reviewed research and results If it sounds too good to be true it is!!

36 Five Dangers of “Fad” diets
Lose weight too quickly Don’t get adequate nutrition Lose muscle and water, not fat Use dangerous products Result in you gaining weight once you stop the diet

37 Fad Diets Depression Food Anxiety Eating Disorder Body dissatisfaction
Short-Term Outcomes Long-Term Outcomes $$ Pay money Strict restrictions “this is impossible” Lose water weight Possibly lose some weight initially All or nothing mentality Want to quit Feel like a failure Depression Food Anxiety Eating Disorder Body dissatisfaction

38 The bottom line is… Eat Less/Eat Healthy & Exercise More

39 Fad diet activity Let’s evaluate and compare these diets

40 Obese and Overweight; It’s not what you think

41 You may think this:

42 But what about this?

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44 BMI : Body Mass Index BMI is measured by HEIGHT and WEIGHT BMI=kg/m2

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47 Obesity Obese = Having a BMI of greater than 30 kg/m2

48 In your journal Number 1-4

49 #1 Find your BMI

50 #2 Kevin James Height: 5’ 8” Weight: 260 lbs
* Talked on David Letterman’s late night show about times when we had weighed as much as 300 lbs

51 #3 Jennifer Aniston Height: 5’5” Weight: 110

52 #4 Usain Bolt Height: 6’ 5” Weight: 210 lbs

53 So… do you think BMI is a perfect indicator of to measure normal to obese body types?

54 BMI does not account for Body Composition
Body Composition: What your body is made of For example: 82 lbs Lean body mass (muscle, bone, organs) 60 lbs lean body mass + 33 lbs Fat (body fat, cell membranes, brain) lbs Fat (body fat, cell membranes, brain) 115 lbs Total Body Weight lbs Total Body Weight

55 BMI Table LIMITATIONS It does not account for Body composition:
1.It may overestimate body fat in athletes and others who have a muscular build 2. It may underestimate body fat in older persons and others who have lost muscle mass. 7 7 7 7

56 Moral of the Story: BMI is not a perfect indicator of health or size. Actual body composition measurements would be more accurate. In general, BMI is good for a rough estimate of health and weight. We use it because it’s an easy measurement. Obesity and Overweight as defined by the CDC’s BMI table, is VERY common and can look “normal.” Insurance companies make more money insuring people who are “overweight” or obese because they are “less healthy”. Health experts are trying to define how big too big is This is difficult because everybody is different.

57 Body Composition Tests
Skinfold Calipers (easiest) Waist Circumference/hip to waist ratio Hydrostatic Weighing Bioelectrical impedance Bod Pod (most accurate)

58 Body Fat Percentages

59 America’s Obesity EPIDEMIC
Epidemic: a widespread occurrence of an infectious disease in a community at a particular time.

60 What are the Causes of Obesity?

61 Causes of Obesity Diet Sedentary Lifestyle Genetics
We can control some of these causes. What can YOU do in your life to manage your diet and lifestyle to combat or prevent obesity? *New culture of sedentary life style

62 Risk Factors that contribute to Obesity…
Video games Cultural changes Higher consumption of junk food Removing PE from schools The internet Fewer sit-down meals with the family Cable and satellite TV Poverty Public transportation More families owning multiple cars Obese parents making it easier for their kids to be obese Teenage dieting fads and eating disorders Do any of these surprise you? It’s probably a combination of them all

63 What is the obesity trend in the United states?

64 Obesity Trends

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66 Obesity Trends 1. What did you notice? 2. What things have changed since the 1980’s to get us to where we are? 3. What can be done to change this?

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69 Health Consequences of Obesity
Heart Disease Cancer Stoke Type II Diabetes Arthritis Sleep Apnea Depression Gall Stones

70 Average age of life across the world

71 How Dangerous is Obesity?
With a BMI of 32, your risk of dying at any given time DOUBLES Obesity on average shortens your life by 6-7 years Severe obesity on average shortens your life by 20 years In the meantime it can make daily physical activities difficult Milk jug analogy A milk gallon is about 8 lbs. Imagine carrying around a milk jug all day. You are bound to get tired.

72 Childhood Obesity “Obesity isn’t just for old people anymore”
Why is childhood obesity such a GREAT concern?

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76 Teach Every Child about Food (20 minutes)
Combating the obesity epidemic: List in your journal What are 2 things individuals can do What are 2 things communities/local governments can do

77 Extra

78 Obesity Article Activity

79 Interventions on every level

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81 We are going to look at obesity through an Epidemiologist’s lenses
Epidemiology= studying the incidence, distribution, and possible control of diseases and other factors relating to health

82 Epidemiologist look at
What is the health problem? What are the contributing factors to the problem? What are the health consequences to the individual and the community? What can be done (intervention)? (At every level)

83 Interventions on every level

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85 Why is proper nutrition an issue?
Can you be Thin and unhealthy? Biggest loser too skinny? Why does “the obesity epidemic” matter? Why do I care?

86 Real-life examples Dr. advice (3mins) 300+ pounds 12-year old
5th grader loses 66 lbs natural way

87 Example: Apply your knowledge of BMI to evaluate this:
Biggest Loser Winner too Thin?

88 Review What is BMI? What are the limitations of BMI measurements?
What are the limitations of body fat calculators? What are the limitations of waist circumference? What is the most accurate way to measure body composition? Why isn’t this more widely used? BMI: Easiest, doesn’t distinguish between fat weight and muscle weight. Doesn’t take into regard where the weight is being stored. Weight around the waist can lead to CVD and diabetes. Waist Circumference: indicative of health risks-doesn’t take ethnicity into account Body fat calculator- gives general readings for body fat percentages, some need more calculations to be more accurate (age, gender, height, weight, and waist circumference). NOT THE MOST ACCURATE -Most accurate is the BOD POD and underwater weighing.

89 What does this look like?
Metabolism video

90 Why Teens should not diet
when-are-they-too-young

91 It’s LIFESTYLE Healthy weight loss isn't just about a "diet" or "program". It's about an ongoing lifestyle that includes long-term changes in daily eating and exercise habits


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