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Motivation, Full, Hungry, Dehydration, orexin promotes meal initiation. …

- - - - Hot
        
        Brain Area : Medial preoptic area
        
        Sweating, seeking cold
        
        Thyroid Stimulating hormone decreases
      - Cold
        
        Brain Area:Area : Medial preoptic area
        
        Shivering Seeking warm
        
        Thyroid Stimulating hormone increases
- - - - leptin-sensitive cells are sent to melanin-concentrating hormone (MCH) or orexin
        
        MCH & orexin
        
        MCH and orexin rise in the brain when leptin levels in the blood fall.