How The Seasons Affect Mood

By: Westin. G Jase .M Breannna.W Cole. T

How The Seasons Affect Your Mood.

Seasonal Affective Disorder (SAD) may affect 6% of the US Population, according to the

American Academy of Family Physicians, while 10% to 20% of the population may experience a milder form called ''Winter Blues''

What Is (SAD)?

Seasonal Affective Disorder (SAD) is a type of depression that occurs at a certain time of the year usually in the winter

How do you get (SAD)?

Anyone can get (SAD) but more common in..

  • Women
  • People who live far from the equator, where winter daylight hours are short.
  • People between the age of 15 and 55.The risk of getting SAD for the first time goes down as your age.
  • People who have a close relative with SAD

What Causes (SAD)?

Experts aren't sure what causes SAD, But they think it is caused by a lack of sunlight.

Lack of light may:

  • Upset your "Biological Clock" , which controls your sleep-wake pattern and other circadian rhythms.
  • Causes problems with serotonin, a brain chemical that affects mood.


One of the affects on humans for seasons are peoples moods

Evidence #1

babies born in summer may form more mood swings than babies that were born in fall.

Evidence #2

4-6% of people have winter depression, women get SAD 4x more than men. 10-20% people have mild SAD

Evidence #3

1.4% of people in Florida get SAD and 9.9% get SAD in Alaska

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