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Notice if he's become more irritable and angry. Notice if he has an inability to focus. Ask about his feelings. Know that you're looking for a cluster of symptoms. Pick up on suicidal thoughts or thoughts of death Show your support if suicidal signs are present

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Depression in men is commonly displayed through anger. It is not uncommon to lack sleep and energy when depressed, which can ultimately have a significant effect on his mood. If your loved one has been displaying random fits of anger, this may be an underlying symptom of depression. Women tend to show emotional symptoms in the form of tears, and communicate their need for assistance. Men on the other hand tend to act out, typically in a more aggressive, angrier fashion. A man with depression will likely display trouble concentrating, remembering details, or making decisions. He'll be unable to concentrate and make decisions, be it important or minute. This will greatly affect his home and work life. If he has depression, he likely feels sad or empty. If he's unwilling to open up about it, you may observe him being generally down about life.  He may not get excited or feel happy about things that would normally be pleasurable, which is another way to determine if he's feeling blue. Men generally have difficulty expressing sadness. Sometimes this emptiness manifests as feeling hopeless, irritable, anxious, or angry. He may seem pessimistic, easily annoyed, worried about things out of his control, and will display a short temper. If this person displays 4-5 of the symptoms listed above, he is most likely dealing with depression.  However, one or two symptoms do not indicate a depressive episode – we all feel down and blue at times. What's more, depression will last for more than two weeks; mere sadness goes away sooner and is often only in certain environments. If depression does seem to be the case, know that it's highly treatable. In fact, most people will experience at least 1 depressive episode at one point in their life.  It's incredibly common and nothing to be ashamed about. . This is often the hardest symptom to observe because people often do not want to talk about suicide.  However, this can be observed through speech patterns.  People who are depressed may make comments about just wanting to get away, go to sleep, or go to sleep and not wake up. Unfortunately, this is not something that can be shrugged off. Between depression in men going undiagnosed and rates of successful suicide being higher in men, signs of suicidal ideation need to be addressed immediately. Consider seeking out a therapist as soon as possible if your loved one displays this symptom. . If you begin seeing signs like him apologizing, saying goodbye, or giving away his favorite possessions, he is likely planning a suicide attempt.  If you notice these signs bring it to their attention and let them know you know what's going on.  Be gentle when approaching the subject but also frank. Ensure that he does not have access to any way to hurt himself and try to find out as much as you can about his suicide plan.  Try to get them to agree to not harm themselves without calling for help – you are a suicide hotline first.  If they refuse, then it may be best to contact the local authorities.  The police will be able to temporarily commit him to a psychiatric facility to receive the treatment he desperately needs.