Norepinephrine or noradrenaline

1
Norepinephrine or noradrenaline

• Multiple roles
• Affects parts of the brain, such as where
  attention and responses are controlled
• Triggers fight-or-flight response (increasing
  heart rate, triggering the release of glucose
  from energy stores, and increasing blood flow to
  skeletal muscle)

2
Dietary Source

• Found in proteins such as meat, nuts, and eggs.

3
Serotonin

• Well-known contributor to feelings of well-being

4
Dietary Source

• Found in pineapple, banana, kiwifruit, plums, and
  tomatoes.

5
Dopamine

• Associated with the reward system of the brain.
• Dopamine has many functions in the brain,
  voluntary movement, motivation, sleep, mood,
  attention, working memory, and learning.

6
Dietary Source

• Food sources of dopamine include almonds,
  avocados, bananas, dairy products, lima beans,
  pumpkin seeds, and sesame seeds.

7
Is water important to the brain?

• For optimal brain function, it is important to
  drink sufficient quantities of water.
• When your dehydrated, your nerve cells cant
  operate efficiently and your brain function is
  diminished.
• http//www.learninginfo.org/healthy-brain-food.htm
  

8
When are they active?Work with your team to fill
in column 1 of LAB10
9
Physical Activity

• All three
• Dopamine (Motivation/Drive)
• Serotonin (Mood)
• Norepinephrine (Energy, Concentration)

10
What does exercise do?

• Exercise exerts its effects on the brain through
  several mechanisms, including neurogenesis, mood
  enhancement, and endorphin release.

11
What is neurogenesis?

• Neurogenesis is the production of new neurons.
• However mice bred to over exercise actually
  showed an inability to learn. High runners tend
  to max out in the production of
  neurotransmitters, and that may be what prevents
  learning.

12
How does exercise affect mood?

• Physically active people recover from mild
  depression more quickly.
• Depression is related to LOW levels of certain
  neurotransmitters like serotonin and
  norepinephrine.

13
How does exercise affect mood?

• Exercise increases concentrations of these
  neurotransmitters.
• Exercise stimulates the release of endorphins
  within approximately 30 minutes from the start of
  activity.

14
Can exercise be addicting?

• Exercise is generally non-habit forming, despite
  effects on the reward centers of the brain that
  mimic those of highly addictive drugs like
  morphine.
• It seems strange that an activity as beneficial
  as exercise, with a built-in mechanism for
  addiction, is so easy to give up.