• . understand what depression is

It is thought that depression is caused by a reduction in serotonin receptors in the hippocampus

• 2. recognise the typical symptoms of depression

• continuous low mood or sadness.

• feeling hopeless and helpless.

• having low self-esteem.

• feeling tearful.

• feeling guilt-ridden.

• feeling irritable and intolerant of others.

• having no motivation or interest in things.

• finding it difficult to make decisions.