Thu Oct 8, 2015 9:11 pm (PDT) . Posted by:
Listen in to this TEDtalk:http://www.ted.com/talks/sandrine_thuret_you_can_grow_new_brain_cells_here_s_how?utm_campaign=social&utm_medium=referral&utm_source=facebook.com&utm_content=talk&utm_term=scienceThis excerpt from the presentation is fascinating:
What you eat will have an effect on the production of new neurons in the
hippocampus. So here we have a sample of diet — of nutrients that have
been shown to have efficacy. And I’m just going to point a few out to you:
Calorie restriction of 20 to 30 percent will increase neurogenesis.Intermittent fasting — spacing the time between your meals — will increase neurogenesis. Intake of flavonoids, which are contained in dark chocolate or blueberries, will increase neurogenesis. Omega-3 fatty acids, present in fatty fish, like salmon, will increase the production of these new neurons.
Conversely, a diet rich in high saturated fat will have a negative impact on neurogenesis. Ethanol — intake of alcohol — will decrease neurogenesis. However,
not everything is lost; resveratrol, which is contained in red wine, has been shown to promote the survival of these new neurons. So next time youare at a dinner party, you might want to reach for this possibly
8:23And then finally, let me point out the last one — a quirky one. So
Japanese groups are fascinated with food textures, and they have shown that
actually soft diet impairs neurogenesis, as opposed to food that requires
mastication — chewing — or crunchy food.
So all of this data, where we need to look at the cellular level, has been
generated using animal models. But this diet has also been given to human
participants, and what we could see is that the diet modulates memory and
mood in the same direction as it modulates neurogenesis, such as: calorie
restriction will improve memory capacity,whereas a high-fat diet will
exacerbate symptoms of depression — as opposed to omega-3 fatty acids,
which increase neurogenesis, and also help to decrease the symptoms of
depression. So we think that the effect of diet on mental health, on memory
and mood, is actually mediated by the production of the new neurons in the
hippocampus. And it’s not only what you eat, but it’s also the texture of
the food, when you eat it and how much of it you eat.
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