Seasonal affective disorder (SAD) is caused by disturbances in the circadian cycle, a mechanism that controls conversion of serotonin into melatonin in the evening and mid-afternoon, and the conversion of melatonin into serotonin during daytime.
She has had a loss that causes everyone to be sad):
The causes of slums in Egypt is really quite sad. These people suffer from poverty, drugs, and unstable work environments.
he lost his gameboy and was sad after he could no longer play supermario bros
While many result from lightning, the sad truth is that many are caused by man.
There are many causes that a dog's upright ears begin to flop down. The dog may be ill, sad, or confused.
moving chief is the one upone us loved one and sad and happy ones
Strong emotion causes crying. It is a normal human response which has nothing to do with depression. Depression causes you to cry for no reason instead of from actual sadness. Your body cries to release emotion during times of strong emotional surges, such as being very sad or very happy.
Many sad porkers lost their lives... and hungry farmers gained bacon.
Something traumatic must have happened in your life or life changing that makes you feel terrible,sad, or deppressed.
He died at his home in 1952 of natural causes aged 90. it was a very sad day for his family
Aleksandar Tisma died on February 16, 2003, in Novi Sad, Serbia and Montenegro of natural causes.
sad sad sad sad