Men have a particularly difficult time recognizing the symptoms of depression and anxiety, as well as more debilitating illnesses such as schizophrenia and bipolar disorder.

It's often a girlfriend or spouse who picks up on them.

Depression is so common, that it's said one in five men suffer from it at some point. Mental health issues are legitimate medical problems, and there are a variety of effective treatments.

For more information, take a look at these signs of depression from the Mayo Clinic.