Disturbed sleep

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Most people who suffer from depression find that their sleep is disturbed in some way. This is because of the changes in your brain's different chemical messengers.

These substances are called neurotransmitters and they carry nerve impulses in the brain from one nerve to another. There is an intricate balance between the various neurotransmitters - they affect each other and are fundamental to the brain's activity.

When you are depressed there may also be changes in the neurotransmitter serotonin in particular, but also in other transmitter systems such as noradrenalin and dopamine. Changes in the transmitter system trigger major changes in sleeping patterns, which can manifest themselves in you. Such as:

• Finding it difficult to get to sleep
• Spending less overall time asleep
• Never feeling fully rested
• Sleeping very lightly
• Waking up several times during the night
• Waking up early
• Having a higher number of sleep cycles
• Having disrupted REM sleep or alternatively over sleeping