Others sleep more than is usual and may be lethargic and listless while awake. They may feel restless and agitated throughout the day. Many experience changes in their eating habits. Some lose their appetite for food and lose weight. Others feel hungry all the time, eat a lot more food and gain weight.
Sexual appetite can change too.
Many lose interest in sex and feel no pleasure in sexual activity. Other people will find sex eases their mental distress and sadness and become almost preoccupied by it. Even normally happy events fail to bring good feelings. It's harder to concentrate or think clearly and quickly as usual, and making decisions, even small decisions like what to wear or eat, can become impossible. Someone with a major depressive disorder may feel guilty, unworthy of being loved, helpless to do anything to change the situation.