Depression is a mental condition characterized by feelings of severe despondency and dejection. It can cause a lack of energy and difficulty maintaining interest in activities. Common symptoms include feelings of hopelessness, guilt, worthlessness, difficulty concentrating and sleeping, changes in appetite, and thoughts of death or suicide. Depression is one of the most common mental illnesses, affecting about 20% of the population at some point in their lives. It is linked to changes in brain chemistry and activity, especially in the frontal and temporal lobes of the left side of the brain.

2. What is Depression?
1. Severe despondency and dejection, accompanied by feelings of
hopelessness and inadequacy.
2. A condition of mental disturbance, typically with lack of energy and
difficulty in maintaining concentration or interest in life.
Fact Depression is one of the most
common illnesses found in human
beings.

3. DEPRESSION VS. SADNESS
• Sadness- the feeling of sorrow or unhappiness
• Sadness and depression have similar reactions except for depression
lasts longer than sadness
• Depression can affect someone's mood, cause them to feel drained,
and cause someone to feel down for weeks/ months.
• Sadness doesn’t last very long, it can be something that makes you
sad that day and then you eventually get over it.

4. WHO IS AFFECTED BY DEPRESSION?
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5. FACTS ABOUT DEPRESSION
• One of the most common illnesses found in human beings
• Serious and sometimes can be chronic
• Afflicts 20 percent of the population in the United States and worldwide
• Women are two to three times more likely to fall victim to the mood disorder
than men
• Depression tends to run in families
• Approximately one in five adults in the United States suffer from depression
one time in their lives
• Affects more than 17 million Americans each year
• Hundreds of thousands of medications are given out each year to treat
depression

6. FERTILE GROUND THEORY
• The belief that depression must have a hereditary or physical vulnerability to
the condition that causes the mood-regulating system to fail when life’s
stresses exceed the person’s ability to cope with them.
• Biological imbalances
Ainsworth, P. (2000). Understanding Depression

7. WHAT HAPPENS IN THE BRAIN
• Depression may be caused by episodic misfiring of areas of the left frontal
lobe and the left temporal lobe as a result of genetic, environmental, social, or
physiological factors.
• That conclusion coincides with clinical observations that stroke patients are at
greater risk for depression if the stroke is on the left side of the brain,
especially in the left frontal lobe.
Ainsworth, P. (2000). Understanding Depression.

8. DEPRESSION IN THE BRAIN
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9. If the video doesn’t work I
placed the link here for you to
view on your own!
http://www.youtube.com/watch?v=IeZCmqePLzM

10. MOST COMMON SYMPTOMS OF DEPRESSION
-Feelings of helplessness and hopelessness.
-Feeling useless, inadequate, bad.
-Self hatred, constant questioning of thoughts and actions, an overwhelming need for
reassurance.
-Being vulnerable and "over-sensitive".
-Feeling guilty.
-A loss of energy and motivation, that makes even the simplest tasks or decisions seem
difficult.
-Self harm.
-Loss or gain in weight.
-Difficulty with getting off to sleep, or (less frequently) an excessive desire to sleep.
-Agitation and restlessness.
-Loss of sex drive.
-Finding it impossible to concentrate for any length of time, forgetfulness.
--A sense of unreality.
-Physical aches and pains, sometimes with the fear that you are seriously ill.
*In severe depression, these feelings may also include:
-Suicidal ideas.
-Failure to eat or drink.
-Delusions and/or hallucinations.

11. DO YOU HAVE ANY SIGNS OF DEPRESSION?

12. MEASURING DEPRESSION
The items below refer to how you have felt and behaved **during the past
week.** For each item, indicate the extent to which it is true, by
circling one of the numbers that follows it. Use the following scale:
0 = Not at all
1 = Just a little
2 = Somewhat
3 = Moderately
4 = Quite a lot
5 = Very much
1. I do things slowly..............................................0 1 2 3 4 5
2. My future seems hopeless...............................0 1 2 3 4 5
3. It is hard for me to concentrate on reading.....0 1 2 3 4 5
4. The pleasure and joy has gone out of my life..0 1 2 3 4 5
5. I have difficulty making decisions...................,0 1 2 3 4 5
6. I have lost interest in aspects of life that
used to be important to me...................................0 1 2 3 4 5
7. I feel sad, blue, and unhappy............................0 1 2 3 4 5
8. I am agitated and keep moving around............0 1 2 3 4 5
9. I feel fatigued.....................................................0 1 2 3 4 5
10. It takes great effort for me to do simple
things......................................................................0 1 2 3 4 5
11. I feel that I am a guilty person who
deserves to be punished........................................0 1 2 3 4 5
12. I feel like a failure...........................................0 1 2 3 4 5
13. I feel lifeless--more dead than alive...............0 1 2 3 4 5
14. My sleep has been disturbed:
too little, too much, or broken sleep.....................0 1 2 3 4 5
15. I spend time thinking about HOW I might
kill myself...............................................................0 1 2 3 4 5
16. I feel trapped or caught...................................0 1 2 3 4 5
17. I feel depressed even when good things
happen to me.........................................................0 1 2 3 4 5
18. Without trying to diet, I have lost,
or gained, weight...................................................0 1 2 3 4 5

13. DISTRIBUTION OF MUSCARINIC RECEPTORS IN
THE DEPRESSED BRAIN
• Muscarinic
receptors
are G
protein-
coupled
acetylcholi
ne
receptors
found in
the plasma
membrane
s of certain
neurons
and other
cells.

14. BIBLIOGRAPHY
*Ainsworth, P. (2000). Understanding Depression. Jackson: University Press of Mississippi.
There are theories to depression since a main cause has not been verified. The brain
triggers off different moods and sends them to our body to make us react to things in
different ways. Our brains all work differently and heredity may be a cause to our brain
reactions.
Mondimore, F. M. (2006). Depression, The Mood Disease. Baltimore: Johns Hopkins
University Press.
Depression is serious and can be treated as a disease. Depression can cause a person
to act a totally different way then they were before.
Reinberg, S. (2012). Depression Hippocampal Volume Loss. HealthDay Reporter, 2.
Depression can become a disorder in the brain. Depression disorders are most likely in
teens from the age of 13-18. The Hippocampus plays a role in the body which it
responds to stress.
*Wayne Katon, E. L. (2008). The Depression Helpbook. Boulder: Bull Publishing Company.
There are plenty of explanations and facts on how depression may come about in the
brain. Medications are given out to help people who are depressed.