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Scientists say they have discovered the part the brain that is responsible us feeling miserable, anxious and stressed. A UK-based medical research company called Heptares Therapeutics said it has located the molecule related to depression. It is a protein found the brain called CRF1. The company said the protein, "is important regulating the body's response to stress and is implicated stress-related diseases such as depression and anxiety". The team used one the world's most powerful x-ray machines its research. Lead researcher Fiona Marshall said a greater understanding the CRF1 protein could lead to ground-breaking drugs to control depression.

Britain's National Health Service (NHS) warned anyone suffering depression or related illnesses not to get too excited this research. It questioned whether a single molecule could really lead to depression, and said the condition actually resulted a complex interaction chemicals. An NHS statement expressed surprise the way two Britain's biggest newspapers have built the story – "The Daily Mail" and "The Sunday Times". The latter reported that researchers had found the "miserable molecule," saying it was "the protein involved all our feelings stress, anxiety and even depression". The NHS said: "It's a great headline, but a hugely sweeping claim."