<prompt> Depression patients in developing countries most prominently show which of the following feature?Low moodSleep disturbanceVague body achesSuicidal tendancy  <response>: Multiple physical symptoms such as heaviness of head, vague body aches are paicularly common in the elderly depressives and depressed patients from the developing countries such as India MC psychiatric disorder in India: Depression Neurotransmitter involved: Serotonin and nor-epinephrine MC cause of suicide: DepressionRisk features of suicide in depression: Endogenous type of depression Psychotic depression MC type of post-puerperal psychosis: Depression Nihilistic ideas: Seen in depression 