From another website
Are you depressed?
If you identify with several of the following signs and symptoms, and they just won?t go away, you may be suffering from clinical depression.
you can?t sleep or you sleep too much
you can?t concentrate or find that previously easy tasks are now difficult
you feel hopeless and helpless
you can?t control your negative thoughts, no matter how much you try
you have lost your appetite or you can?t stop eating
you are much more irritable, short-tempered, or aggressive than usual
you?re consuming more alcohol than normal or engaging in other reckless behavior
you have thoughts that life is not worth living (Seek help immediately if this is the case)
but this is really interesting
male depression
Unfortunately, men are far less adept at recognizing their symptoms than women. A man is more likely to deny his feelings, hide them from himself and others, or try to mask them with other behaviors. The three most common signs of depression in men are:
Physical pain. Sometimes depression in men shows up as physical symptoms?such as backache, frequent headaches, sleep problems, sexual dysfunction, or digestive disorders?that don?t respond to normal treatment.
Anger. This could range from irritability, sensitivity to criticism, or a loss of your sense of humor to road rage, a short temper, or even violence. Some men become abusive, controlling, verbally or physically abusive to wives, children, or other loved ones.
Reckless behavior. A man suffering from depression may start exhibiting escapist or risky behavior. This could mean pursuing dangerous sports, driving recklessly, or engaging in unsafe sex. You might drink too much, abuse drugs, or gamble compulsively.
there is also a good table which shows the difference in the way depression manifests between men and women
Women Men tend to:
women Blame themselves
men Blame others
women Feel sad, apathetic, and worthless
men Feel angry, irritable, and ego inflated
women Feel anxious and scared
men Feel suspicious and guarded
women Avoid conflicts at all costs
men Create conflicts
women Feel slowed down and nervous
men Feel restless and agitated
women Have trouble setting boundaries
men Need to feel in control at all costs
women Find it easy to talk about self-doubt and despair
men Find it ?weak? to admit self-doubt or despair
women Use food, friends, and "love" to self-medicate
men Use alcohol, TV, sports, and sex to self-medicate