Typically sufferers of depression have reduced levels of energy, making them lethargic. This has a knock-on effect, with sufferers tending to withdraw from work, education and social life. In extreme cases this can be so severe that the sufferers cannot get out of bed. In some cases depression can lead to the opposite effect- known as psychomotor agitation. Agitated individuals struggle to relax and may end up pacing up and down.Disruption to sleep and eating behaviour
Depression is associated with changes to sleeping behaviour. Sufferers may experience reduced sleep ( insomnia), particularly premature waking, or an increased need for sleep (hypersomnia). Similarly, appetite and eating may increase or decrease, leading to weight gain or loss. The key point is that such behaviours are disrupted by depression.