IN THE NEWS: A new study suggests that slimming down 'tongue fat' might help ease sleep apnea. Also, muscle mass and diet play a crucial role in fighting cancer.

MAIN: The Body Clock. Scientists are looking into why eating at unusual times is a major cause of body clock disruption and they have found that melatonin, dopamine and insulin all play a role. 

TRIVIA: Does excess weight weaken the effectiveness of the flu shot?

LISTENER QUESTION: Do the seasons affect our need for calories?

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