Transcript Smart Eating

Smart
Eating
Food
&
Your
Body
Weight
Why Do We Eat?
Hunger:
body’s physical response
to the need for food
Are you really hungry?
 Appetite:
desire, rather than a need,
to eat certain types of foods
 Sight, smell, time of day, others around
you, or mood
Food Provides Energy
 Carbohydrates,
giving nutrients
fats, & protein = energy-
 Carbohydrate
= 4 calories per gram
 Protein = 4 calories per gram
 Fats = 9 calories per gram
 Calorie:
energy in measured unit
How Excess Food Energy Is Stored
Excess
Carbohydrate
Glycogen
Excess
Fat
BODY FAT
Excess
Protein
Right Breakfast Keeps you Going
 Usually
10 to 12hrs since last had food
 Skipping
breakfast can go 16hrs
 Lack
of food = lack of energy for body &
lack of glucose for your brain
 Fat & protein feel full longer
 Ex
carb = toast & orange juice
 Will
 Ex
be hungry much faster
carb, protein, & fat = yogurt, cereal, & fruit
 Will
feel full much longer
How much energy do you need?
 Basal
metabolic rate (BMR): minimum
amount of energy needed to keep you
alive when you are in a rested, fasting
state, such as just after you wake up in
the morning
 Boys need more energy than girls
 Depend on your activity
 Depends on your weight
Calories that are burned per hour
TV
Walking
Skating
Mountain biking
Running
0
100
200
300
400
500
Balancing energy intake with
energy used
 Excess
calories = weight gain
 Less calories = weight loss
 Some body fat is essential – stored
energy, insulation, internal organ
protection
 Woman
– 20-30%
 Men – 12-20%
Overweight & Obesity: a Growing
Problem
 Overweight:
person who is heavy for his
or her height
 Obesity: condition in which there is an
excess of body fat for one’s weight
 Weighs
more than 20% above his or her
recommended weight range
Risk of overweight and obesity
 Heart
disease and high blood
pressure
 Certain forms of cancer, including
prostate, colon, & breast cancer
 Type 2 diabetes
 Sleeping problems such as sleep
apnea
Why are so many people
overweight?
 Lack
of physical activity
 Many
modern
conveniences
 Video games & TV
 Changing
 Eat
diet
more than needed
 Choose foods high in fat &
sugar
Maintaining
A
Healthy
Weight
Why do you weigh what you
weigh?
 Heredity:
passing down of
traits form parent to child
 Lifestyle
 Sedentary
lifestyle:
accustomed to sit or rest a
great deal or to take little
exercise.
Video Questions
Need ½ sheet
of paper
How
does the video show
sedentary lifestyle?
List the items
Would
you like this kind of
lifestyle? Explain
Video – Walle
 Chapter

About the ship





39 min to 43 min
1st time on their chairs
John falls off
Everything in a cup
Mary sees her world in a new light




44 min to 49 min
Captain
See the bodies getting fatter
Bones smaller

125min
 Chapter
 Chapter
 Chapter
14
16
30
Healthy Weight for me
 Body
composition: measure of the
proportion of the body weight that is
made up of fat tissue compared to
bone and muscle
 Skinfold
thickness – caliper is used to
pinch a portion of skin and the underlying
fat at one or more location on the body
Healthy Weight for me cont.
 Body
Mass Index (BMI): index of
weight in relation to height that is
used to asses healthy body weight
 BMI = weight(lb) / height(in) /
height(in) X 703
 Example
158 / 68 / 68 X 703 = 24.0
 Adults
 Overweight
– 25.1 – 29.9 BMI
 Obese – 30 or more BMI
Healthy BMI Range
Age
Boys
Girls
15
16.5 – 23.4
16.2 – 24
16
17.1 – 24.2
16.7 – 24.6
17
17.6 – 25
17.3 – 25.2
18
17.8 – 25.6
17.5 – 25.7
Healthy Weight Management
Plan
 Weight
management: program of
sensible eating and exercise habits
and will help keep weight at a
healthy level
 Eat smart, exercise more
 Reduce
portion size
 Keep high-calories as a treat
 Increase exercise – 60 min of moderate
activity level
 Keep a daily log of food and exercise
Healthy Weight Management Plan
cont.
 Lose
fat, not muscle
½
to 1 pound of weight loss per week –
prevent muscle loss
 500 fewer calories per day or burn 500 calories
extra each day
 Underweight
 Check
with doctor to make sure it is not a
illness
 Increase food intake by more meals more
often
 Healthy
high calorie foods – example (pastas)
Dangerous Weight-Loss
Practices
 Fad
diet: diet requires major
changes in your eating habits
and promises quick results
 Atkins
– no carb all meat
 All grapefruit
 Diet
pills – weight loss without
need to lower calories
 Regain
weight when no longer
taking the pills
Dangerous Weight-Loss Practices
cont.
 Surgery
 Gastric
bypass – bypass
part of the stomach to
the intestine
 Lap band
 Very risky, only for
individuals with health
risks
Weight Cycling
 Weight
cycling: the cycle of losing,
regaining, losing, regaining
 “Seesaw dieting” or “Yo-yo dieting”
 Less healthy than being slightly over
weight
 Losing weight becomes harder and
harder
Eating
Disorders
What are Eating Disorders?
 Abnormal
eating patterns
 Never
eating
 Dieting excessively
 Eating only certain types of foods
 Eating too much
 Not responding to natural feeling of fullness or
hunger
 Eating
disorders – condition that involve
an unhealthy degree of concern about
body weight and shape and that may
lead to efforts of weight control by
unhealthy means
Evolution of Beauty

http://teachertube.com/viewVideo.php?video_id=55159&title
=Eating_Disorder_Awareness&ref=np026
Does
this change the way you
think about images you see on
print or TV? Explain
Body Image and Eating Disorders
 Body
image: how
you see and feel
about your
appearance and
how comfortable
you are with your
body
 Distorted body
image
Body Image and Eating
Disorders cont.
 Society
has changed – from
curvy to thin
 Model, TV, magazine, & clothing
style – this is what everyone
wants to be
 Misguided notion that once the
perfect figure is attained,
everything in life will be fine
Life Size Barbie!
 Galia
Slayen made
a Barbie doll that
stands about 6 feet
tall with a 39″ bust,
18″ waist, and 33″
hips.
Body Image and Eating Disorders
cont.
 Healthy
body image – you accept
your body’s appearance and
abilities
 Have
size
realistic expectations about your
Anorexia Nervosa
 Anorexia
nervosa: self-starvation
distorted body image, and how body
weight
 Obsession of being thin
 Low self-esteem and feel controlled by
others
 Consume hundreds of calories versus
thousands
440 calories a day
130
calories = 10
115
calories = 20
45
calories = 10
150
calories = 1
Anorexia Nervosa cont.
 Signs
& Symptoms
Intense fear of weight gain
 Over exercising
 Preferring to eat alone
 Preoccupation with calories
 Extreme weight loss
 Loss of menstrual periods for at least 3 months
 Hair loss on head
 Hair gain on the body
 Depression and anxiety
 Weakness and exhaustion

Anorexia Nervosa cont.
 Treatment
 Medical,
psychological, and nutritional
therapy to help the person regain
health and develop healthy eating
behaviors
 Family counseling
Bulimia Nervosa
 Bulimia
nervosa: individual repeatedly
eats large amounts of food and then uses
behaviors such as vomiting or using
laxatives to rid the body of the food
 Purging: vomiting or misusing laxatives to
rid the body of food
 May consume as many as 20,000 calories
in binges that last as long as 8 hrs
400 calories per 1/4lb cheeseburger
 This
is 25 cheeseburgers = 10,000 calories
Bulimia Nervosa cont.
 Signs
and Symptoms
 Preoccupation
with body weight
 Bingeing with or without purging
 Bloodshot eyes and sore throat
 Dental problems
 Irregular menstrual periods
 Depression and mood swings
 Feeling out of control
 At least two bulimic episodes per week for last
least 3 months
Bulimia Nervosa cont.
 Treatment


Therapy to separate eating from emotions
and to promote eating in response to
hunger and satiety
Nutritional counseling to review nutrients
needs and ways to meet them
Binge Eating
 Binge
eating or Bingeing: eating of a
large amount of food in one sitting
 Binge eating but no purging
 ¼ to 1/3 people who enter a weight-loss
clinic may have binge eating
 Frequently undiagnosed
750 pound man
Binge Eating cont.
 Sign
and Symptoms
 Above-normal
body weight
 Bingeing episodes accompanied by
feeling and guilt, shame, and loss of
control
 Treatment
 Psychological
and nutritional counseling
Getting Help
 Many
deny they have a problem
and believe that their behavior is
normal and a chosen lifestyle
 Tell a trusted adult or contact an
agency
Eating Disorder Awareness

http://teachertube.com/viewVideo.php?video_id=55159&title
=Eating_Disorder_Awareness&ref=np026
List
some images that stick out
to you
What were some of the things
the people died from?