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    Sleep: Hunger increases when lacking

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    Joe Dispenza
    @joedispenza
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    One of the strangest results to arise in
    following some obesity studies is that people who sleep less tend to
    gain weight more than others. This idea challenges the popular belief that
    associates sleep with a sedentary lifestyle and obesity and that's not strange
    wondering if the lack of sleep
    alter our biology and this, in turn, affects ours
    eating habits.

    Now, new studies based in the techniques
    functional neuroimage sheds new light on this phenomenon. One of
    these studies analyzed the effects of one night without sleep while the other
    focused on evaluating the impact of sleep deprivation
    for a week. Both studies measured brain activation
    which was evident when people who had not slept came
    show pictures of foods. The data from the two studies gave the same
    Results: Lack of sleep causes certain areas (such as the cortex
    cingolata anterior) involved in the cerebral mechanism of motivation, yes
    unleash in front of the single image of a food. To fully understand
    what does this mean, suffice it to say that a similar activation is observed in the
    drug addicts when shown to
    substance they are addicted to. In other words, the lack of sleep there
    would make you respond in an exaggerated way in front of food, almost as if
    we were addicted to them. But… what is the reason for this answer? The researchers suggest that the "blame"
    of everything would be of our unconscious. That is, our brains know what food
    it means calories and calories are transformed into energy, what we have
    need due to lack of sleep. This idea is not entirely apparent
    absurd and has been further confirmed by other studies. In fact, they are not
    few neuroscientists think sleep deprivation works like
    a red light to our autonomic nervous system, causing this
    increases the levels of the hormone ghrelin (associated with appetite) and reducing
    levels of the hormone leptin (associated with the feeling of satiety). Perhaps
    these changes are identified by the motivational circuits and it is for
    this is that we overreact to food. The teaching that transmits us in
    this occasion the neurobiology is that we should sleep the hours necessary for the organism
    to regain strength. This way we will not only eat less the next day
    but we will also be more alert and less irritable.
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