Individual differences |
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Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
There are a number of reasons for psychologists to study the links between paychological phenomena, the brain and the immune system.
Firstly to help clarify the link between stress and illness.