Depression (From the NHS website)
Depression is more than simply feeling unhappy or fed up for a few days. We all go through spells of feeling down, but when you're depressed you feel persistently sad for weeks or months, rather than just a few days. Depression is a real illness with real symptoms, and it's not a sign of weakness or something you can "snap out of" by "pulling yourself together". The good news is that with the right treatment and support, most people can make a full recovery.
Depression affects people in different ways and can cause a wide variety of symptoms. They range from lasting feelings of sadness and hopelessness, to losing interest in the things you used to enjoy and feeling very tearful. Many people with depression also have symptoms of anxiety. There can be physical symptoms too, such as feeling constantly tired, sleeping badly, having no appetite or sex drive, and complaining of various aches and pains.
For more details information the University of Michigan depression Center provide a good overview: Click Here
For those suffering with depression, this short clip may help you realise there is hope: Click Here
Anxiety (From the NHS website)
Anxiety is a feeling of unease, such as worry or fear, which can be mild or severe.
Everyone has feelings of anxiety at some point in their life. For example, you may feel worried and anxious about sitting an exam or having a medical test or job interview. During times like these, feeling anxious can be perfectly normal.
However, some people find it hard to control their worries. Their feelings of anxiety are more constant and can often affect their daily life. Anxiety is the main symptom of several conditions, including panic disorder, phobias, post-traumatic stress disorder and social anxiety disorder (social phobia).
Generalised anxiety disorder (GAD)
GAD is a long-term condition that causes you to feel anxious about a wide range of situations and issues, rather than one specific event.
People with GAD feel anxious most days and often struggle to remember the last time they felt relaxed. GAD can cause both psychological (mental) and physical symptoms. These vary from person to person, but can include feeling restless or worried and having trouble concentrating or sleeping.
Stress (From the NHS website)
Stress is the feeling of being under too much mental or emotional pressure.
Pressure turns into stress when you feel unable to cope. People have different ways of reacting to stress, so a situation that feels stressful to one person may be motivating to someone else.
Many of life’s demands can cause stress, particularly work, relationships and money problems. And, when you feel stressed, it can get in the way of sorting out these demands, or can even affect everything you do. Stress can affect how you feel, think, behave and how your body works. In fact, common signs of stress include sleeping problems, sweating, loss of appetite and difficulty concentrating.
You may feel anxious, irritable or low in self-esteem, and you may have racing thoughts, worry constantly or go over things in your head. You may notice that you lose your temper more easily, drink more or act unreasonably.
Stress causes a surge of hormones in your body. These stress hormones are released to enable you to deal with pressures or threats – the so-called "fight or flight" response. If you're constantly under stress, these hormones will remain in your body, leading to the symptoms of stress.
Further information is available on the NHS website: Click Here