Really healthy food

Welcome!
Today: 
Discussing test
Explanation about healthy food (2.4, page 114)
Making exercises

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Biologie / VerzorgingMiddelbare schoolhavoLeerjaar 2

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Welcome!
Today: 
Discussing test
Explanation about healthy food (2.4, page 114)
Making exercises

Slide 1 - Diapositive

Healthy?

Slide 2 - Diapositive

Healthy?

Slide 3 - Diapositive

Healthy?

Slide 4 - Diapositive

Healthy?

Slide 5 - Diapositive

Healthy?

Slide 6 - Diapositive

What are we going to learn today?

What a healthy diet is. 
What the consequences of an unhealthy diet are. 

Slide 7 - Diapositive

Energy
The definition of a healthy person differs per person. 
This is mostly related to the energy needs of their body. We measure energy in calories or Joules. 1 kcal = 4,7 kJ, you can heat up 1 liter of water by 1 degree Celsius with 1 kcal. 
People that play sports or have a practical profession have a higher energy need than other people, there are also differences between males and females. 

Slide 8 - Diapositive

Energy needs humans

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BMI (Body mass index)
We calculate a ''healthy weight'' using the body mass index. This is a formula which accounts for the length of a person to see whether a person has a healthy weight.
 
BMI=Weight/length x length

Slide 10 - Diapositive

The wheel of 5
The wheel of five is an image made by the Dutch nutrition centre. It shows you what a healthy meal consists of. They also use the daily recommended intake for it. 

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The wheel of 5
The wheel of five is an image made by the Dutch nutrition centre. It shows you what a healthy meal consists of. They also use the daily recommended intake for it. 

Slide 12 - Diapositive

Eating disorder: too much
Eating too much food can result in health problems, such as heart disease, diabetes and a weakened skeleton. It can also make you feel less energized.  




Slide 13 - Diapositive

Eating disorder: Too little
You can also eat less then your body needs. Sometimes because a person is obsessed with it.  
2 common disorders: anorexia nervosa and boulimia nervosa. In each of these disorders the person is really obsessed with how much they eat and/or what they look like. 

Slide 14 - Diapositive

Thoughts behind eating disorder
Eating disorder have a mental aspect to it in the background. Someone with a eating disorder not only has to change something physically, but also mentally. This is a very hard process and you always need the help from someone else for it. 

Slide 15 - Diapositive

Homework for next lesson
Make the exercises of paragraph 2.4, you don't need to make exercise 4. Good luck!


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