Anxiety, a supposedly normal behaviour that'll actually help a person adjust more to a certain stressful activity like first date jitters or a grueling exam the following day. Anxiety actually helps you get psyched up towards facing certain "difficult situations"; anxiety therefore is actually a good thing.
Anxiety depression however, is simply the opposite, not to be easily dismissed as a "case of the nerves"; Anxiety depression is in actuality an illness that can be caused from the biological makeup of an individual, or in other words, a hereditary illness.
A lot of people who are exerting too much of their brain power usually exhaust not only their physical strength when engaging in various multi-tasking activities, they also tend to over extend their brains up to the point when it plainly needs some good old time for relaxation.
Many busy people cannot fathom the idea of relaxing and taking time of from work, as well as their worries, tend to actually start having nervous breakdowns, anxiety depression and all sorts of mental illnesses that can cause a person's sanity to go haywire, fortunately,
if you're one of those poor unfortunate ones who are unable to distress and is constantly worried and fussing over things, there are actually available cures and various treatments for treating anxiety depression.
Anxiety depression is actually characterized by all sorts of irregularities and erratic behaviour from the person who is suffering from it, this is usually due to certain stress triggers that may tend to easily cause a person undue jitters and stress.
Also, a lot of people who tend to get easily nervous over stressful activities are actually prone to having anxiety depression, its just a matter of being strong-willed when it comes to facing difficult and stress-prone activities. It may be pretty hard to overcome at first, but trying to be calm and cool in times of extreme pressure is what'll actually save your mental health from going totally downward spiral.
When it comes to effectively curing one's self from a mental illness, one must keep in mind that you have to be actually honest with yourself and assess what kind of depression or mental illness you actually have, go to reputable psychiatrist to get yourself diagnosed correctly as well as be able to get the right depression treatment for yourself.