Many people feel some relief from their depressive symptoms when they do activities that help release neurotransmitters to the brain. Exercising, talking to a loved one, and doing a fun, interactive activity can all help. Peer and support groups have also shown to help.
Sleeping is important, too. Lack of sleep, by itself, cannot cause depression. But not getting enough sleep can definitely make symptoms of depression much worse.
Some recent studies have shown that there is a gut-brain connection to some important neurotransmitters like serotonin. Eating healthy foods and healing the gut can help with some depressive symptoms.