2. Eating habitsEating habits
• Remember these four letters: Remember these four letters: DDFMDDFM. If it’s easier, think of them as. If it’s easier, think of them as
call letters for a cheesy radio station, “Double D FM!” The letterscall letters for a cheesy radio station, “Double D FM!” The letters
stand for four nutrients critical to brain health that you probablystand for four nutrients critical to brain health that you probably
aren’t getting enough of: Vitamin D, DHA, Folate and Magnesium.aren’t getting enough of: Vitamin D, DHA, Folate and Magnesium.
Research suggests that our diets are increasingly low in all four, andResearch suggests that our diets are increasingly low in all four, and
our brains are suffering for it.our brains are suffering for it.
• Vitamin DVitamin D
• Why it’s important: Why it’s important: I stumbled across the importance of vitaminI stumbled across the importance of vitamin
D when a routine blood test revealed that my level was low and myD when a routine blood test revealed that my level was low and my
doctor recommended that I begin taking three 2000 i.u. vitamin D3doctor recommended that I begin taking three 2000 i.u. vitamin D3
supplements a day. I’d always thought being out in the sun wassupplements a day. I’d always thought being out in the sun was
enough to keep vitamin D levels high, because the human bodyenough to keep vitamin D levels high, because the human body
uses sunlight to manufacture the vitamin. But research shows we’reuses sunlight to manufacture the vitamin. But research shows we’re
frequently low in this essential vitamin and that’sfrequently low in this essential vitamin and that’spotentiallypotentially
dangerousdangerous. Low levels are associated with free radical damage to. Low levels are associated with free radical damage to
brain cells and accelerated cognitive decline. In addition to brain cells and accelerated cognitive decline. In addition to
boosting brain healthboosting brain health, there’s also , there’s also evidence suggesting that vitaminevidence suggesting that vitamin
D aids in muscle strength and repairD aids in muscle strength and repair..
3. • How to get more of it:How to get more of it: Eat unsalted peanuts. The little legumes Eat unsalted peanuts. The little legumes
are folate powerhouses, and they’re also packed withare folate powerhouses, and they’re also packed with
•
• heart healthy monounsaturated fat. If crunching nuts isn’t yourheart healthy monounsaturated fat. If crunching nuts isn’t your
thing, try natural peanut butter. Just stay away from peanut butterthing, try natural peanut butter. Just stay away from peanut butter
with added sugar and salt – stick to the kind that’s all peanuts. with added sugar and salt – stick to the kind that’s all peanuts. OtherOther
good sourcesgood sources include asparagus, black eyed peas, spinach, broccoli include asparagus, black eyed peas, spinach, broccoli
and egg yolks.and egg yolks. Eat spinach, it’s loaded with magnesium. Eat spinach, it’s loaded with magnesium. OtherOther
sourcessources include almonds and black beans. Just be sure to eat raw include almonds and black beans. Just be sure to eat raw
or roasted almonds that are unsalted and not coated in sugar (evenor roasted almonds that are unsalted and not coated in sugar (even
though those taste so good). Peanuts are also a decent source ofthough those taste so good). Peanuts are also a decent source of
magnesium, which makes them a double-whammy snack becausemagnesium, which makes them a double-whammy snack because
they’re also high in folate as mentioned above.they’re also high in folate as mentioned above.
4. • BRAIN is divided in two different processes, synapticBRAIN is divided in two different processes, synaptic
consolidation and system consolidation. In synapticconsolidation and system consolidation. In synaptic
consolidation, as neuronal pathways are traversed overconsolidation, as neuronal pathways are traversed over
and over again, their structure is modified, facilitating theand over again, their structure is modified, facilitating the
neuronal transmission like a path over a field is clearedneuronal transmission like a path over a field is cleared
as trekkers pass through it. In systemic consolidation,as trekkers pass through it. In systemic consolidation,
the hippocampal–cortical network strengthens its cortico-the hippocampal–cortical network strengthens its cortico-
cortical connections and establishes new ones, allowingcortical connections and establishes new ones, allowing
them to become hippocampus-independent.them to become hippocampus-independent.
• These permanent memories constitute our long-termThese permanent memories constitute our long-term
memory, which in contrast to the popular view, it is notmemory, which in contrast to the popular view, it is not
stored just in one part of the brain, but each componentstored just in one part of the brain, but each component
of the memory is stored where it was originally encoded.of the memory is stored where it was originally encoded.
The human brain can store almost unlimited amounts ofThe human brain can store almost unlimited amounts of
information indefinitely. However, forgetting can occur asinformation indefinitely. However, forgetting can occur as
a result from incorrectly or incompletely encodeda result from incorrectly or incompletely encoded
memories, and/or problems with the retrieval process.memories, and/or problems with the retrieval process.
Moreover, some authors hold that long-term memoriesMoreover, some authors hold that long-term memories
do actually decay and disappear completely over time.do actually decay and disappear completely over time.
5. • All of these processes are very important but they are meaninglessAll of these processes are very important but they are meaningless
without retrieval, which is the possibility to re-access all thewithout retrieval, which is the possibility to re-access all the
memories stored, what is known as remembering. During retrieval,memories stored, what is known as remembering. During retrieval,
the brain "replays" the original pattern formed during encodingthe brain "replays" the original pattern formed during encoding
mixed with an awareness of the current situation, returning amixed with an awareness of the current situation, returning a
memory from long-term storage to short-term memory where itmemory from long-term storage to short-term memory where it
becomes labile and modifiable. There are two main methods ofbecomes labile and modifiable. There are two main methods of
accessing memory: recall and recognition. Recall involves voluntaryaccessing memory: recall and recognition. Recall involves voluntary
remembering a fact, event or stimulus that is not currently physicallyremembering a fact, event or stimulus that is not currently physically
present by actively reconstructing the information. This happens, forpresent by actively reconstructing the information. This happens, for
instance, when you recreate your last weekend during ainstance, when you recreate your last weekend during a
conversation with a friend. In contrast, recognition is an unconsciousconversation with a friend. In contrast, recognition is an unconscious
process that associates an event or stimulus with one previouslyprocess that associates an event or stimulus with one previously
experienced, involving just a process of comparison. This occursexperienced, involving just a process of comparison. This occurs
when the taste of a cake or a song from the radio make youwhen the taste of a cake or a song from the radio make you
remember that first date.remember that first date.
• In sum, this is how memory works. Now, perhaps you may realizeIn sum, this is how memory works. Now, perhaps you may realize
how essential memory is, tying your past with your present,how essential memory is, tying your past with your present,
providing a framework for the future, and constituting a key aspectproviding a framework for the future, and constituting a key aspect
of your personal identity.of your personal identity.
6. Left brain vs right brainLeft brain vs right brain
• When I was born, my brain was formed.When I was born, my brain was formed.
• One hundred and eleven years before my birth, a German boy was born to parents Herman andOne hundred and eleven years before my birth, a German boy was born to parents Herman and
Pauline in the city of Ulm, in the kingdom of Württemberg, in the German empire.Pauline in the city of Ulm, in the kingdom of Württemberg, in the German empire.
• His brain was a bit different than mine, but we’ll get to that later.His brain was a bit different than mine, but we’ll get to that later.
• This story begins in 1967 with the wThis story begins in 1967 with the w
• ork of Roger W Sperry.ork of Roger W Sperry.
• While studying the effects of epilepsy Sperry discovered that by cutting the corpus callosum, aWhile studying the effects of epilepsy Sperry discovered that by cutting the corpus callosum, a
large bundle of fibers that acts as a bridge between both sides of the brain, you could reduce andlarge bundle of fibers that acts as a bridge between both sides of the brain, you could reduce and
eliminate seizures for epileptic patients.eliminate seizures for epileptic patients.
• What he found was that these split-brain patients were unable to name objects processed by theWhat he found was that these split-brain patients were unable to name objects processed by the
right side of the brain, but were able to name objects that were processed by the left.right side of the brain, but were able to name objects that were processed by the left.
• This discovery helped birth split-brain theory, the idea that thoughts are categorized or lateralizedThis discovery helped birth split-brain theory, the idea that thoughts are categorized or lateralized
between the right- and left-brain.between the right- and left-brain.
• Over the years this theory has transformed into the idea that the left-brain is logical, ordered,Over the years this theory has transformed into the idea that the left-brain is logical, ordered,
calculative, and a lover of math and science, while the right brain is creative, free, passionate,calculative, and a lover of math and science, while the right brain is creative, free, passionate,
and a lover of art and imagination.and a lover of art and imagination.
• But, this theory is not the entire truth.But, this theory is not the entire truth.
• Experiments have shown that even for a task as simple as reading a word, both sides of the brainExperiments have shown that even for a task as simple as reading a word, both sides of the brain
need to be activated.need to be activated.
• In subjects such as math, abilities are actually strongest when both halves of the brain workIn subjects such as math, abilities are actually strongest when both halves of the brain work
together.together.
• Many musicians have been shown to have larger corpus callosums, which may influence theirMany musicians have been shown to have larger corpus callosums, which may influence their
musical giftedness.musical giftedness.
• And children with dyslexia have been shown to have smaller anterior regions of their corpusAnd children with dyslexia have been shown to have smaller anterior regions of their corpus
callosums, perhaps influencing their ability to read in order.callosums, perhaps influencing their ability to read in order.
• When Albert Einstein died, his brain was studied. His brain had more extensive fiber connectionsWhen Albert Einstein died, his brain was studied. His brain had more extensive fiber connections
in his corpus callosum. The left and right side of his brain were unusually connected.in his corpus callosum. The left and right side of his brain were unusually connected.
• As we move forward and learn more about our brains, we learn about our history, and we learnAs we move forward and learn more about our brains, we learn about our history, and we learn
about our world.about our world.