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  "events": [ {
    "tStartMs": 6759,
    "dDurationMs": 2862,
    "segs": [ {
      "utf8": "Think back to a really vivid memory."
    } ]
  }, {
    "tStartMs": 9621,
    "dDurationMs": 996,
    "segs": [ {
      "utf8": "Got it?"
    } ]
  }, {
    "tStartMs": 10617,
    "dDurationMs": 4338,
    "segs": [ {
      "utf8": "Okay, now try to remember what \nyou had for lunch three weeks ago."
    } ]
  }, {
    "tStartMs": 14955,
    "dDurationMs": 3306,
    "segs": [ {
      "utf8": "That second memory \nprobably isn't as strong,"
    } ]
  }, {
    "tStartMs": 18261,
    "dDurationMs": 1667,
    "segs": [ {
      "utf8": "but why not?"
    } ]
  }, {
    "tStartMs": 19928,
    "dDurationMs": 3279,
    "segs": [ {
      "utf8": "Why do we remember some things,\nand not others?"
    } ]
  }, {
    "tStartMs": 23207,
    "dDurationMs": 3342,
    "segs": [ {
      "utf8": "And why do memories eventually fade?"
    } ]
  }, {
    "tStartMs": 26549,
    "dDurationMs": 3114,
    "segs": [ {
      "utf8": "Let's look at how memories form\nin the first place."
    } ]
  }, {
    "tStartMs": 29663,
    "dDurationMs": 3086,
    "segs": [ {
      "utf8": "When you experience something,\nlike dialing a phone number,"
    } ]
  }, {
    "tStartMs": 32749,
    "dDurationMs": 3949,
    "segs": [ {
      "utf8": "the experience is converted \ninto a pulse of electrical energy"
    } ]
  }, {
    "tStartMs": 36698,
    "dDurationMs": 3337,
    "segs": [ {
      "utf8": "that zips along a network of neurons."
    } ]
  }, {
    "tStartMs": 40035,
    "dDurationMs": 2636,
    "segs": [ {
      "utf8": "Information first lands \nin short term memory,"
    } ]
  }, {
    "tStartMs": 42671,
    "dDurationMs": 3082,
    "segs": [ {
      "utf8": "where it's available \nfrom anywhere from a few seconds"
    } ]
  }, {
    "tStartMs": 45753,
    "dDurationMs": 1616,
    "segs": [ {
      "utf8": "to a couple of minutes."
    } ]
  }, {
    "tStartMs": 47369,
    "dDurationMs": 4430,
    "segs": [ {
      "utf8": "It's then transferred to long-term memory\nthrough areas such as the hippocampus,"
    } ]
  }, {
    "tStartMs": 51799,
    "dDurationMs": 3592,
    "segs": [ {
      "utf8": "and finally to several storage regions\nacross the brain."
    } ]
  }, {
    "tStartMs": 55391,
    "dDurationMs": 3051,
    "segs": [ {
      "utf8": "Neurons throughout the brain\ncommunicate at dedicated sites"
    } ]
  }, {
    "tStartMs": 58442,
    "dDurationMs": 1541,
    "segs": [ {
      "utf8": "called synapses"
    } ]
  }, {
    "tStartMs": 59983,
    "dDurationMs": 2540,
    "segs": [ {
      "utf8": "using specialized neurotransmitters."
    } ]
  }, {
    "tStartMs": 62523,
    "dDurationMs": 4753,
    "segs": [ {
      "utf8": "If two neurons communicate repeatedly,\na remarkable thing happens:"
    } ]
  }, {
    "tStartMs": 67276,
    "dDurationMs": 4205,
    "segs": [ {
      "utf8": "the efficiency of communication \nbetween them increases."
    } ]
  }, {
    "tStartMs": 71481,
    "dDurationMs": 3469,
    "segs": [ {
      "utf8": "This process, \ncalled long term potentiation,"
    } ]
  }, {
    "tStartMs": 74950,
    "dDurationMs": 4593,
    "segs": [ {
      "utf8": "is considered to be a mechanism\nby which memories are stored long-term,"
    } ]
  }, {
    "tStartMs": 79543,
    "dDurationMs": 2864,
    "segs": [ {
      "utf8": "but how do some memories get lost?"
    } ]
  }, {
    "tStartMs": 82407,
    "dDurationMs": 1733,
    "segs": [ {
      "utf8": "Age is one factor."
    } ]
  }, {
    "tStartMs": 84140,
    "dDurationMs": 3762,
    "segs": [ {
      "utf8": "As we get older, \nsynapses begin to falter and weaken,"
    } ]
  }, {
    "tStartMs": 87902,
    "dDurationMs": 2914,
    "segs": [ {
      "utf8": "affecting how easily \nwe can retrieve memories."
    } ]
  }, {
    "tStartMs": 90816,
    "dDurationMs": 4019,
    "segs": [ {
      "utf8": "Scientists have several theories about\nwhat's behind this deterioration,"
    } ]
  }, {
    "tStartMs": 94835,
    "dDurationMs": 1574,
    "segs": [ {
      "utf8": "from actual brain shrinkage,"
    } ]
  }, {
    "tStartMs": 96409,
    "dDurationMs": 4214,
    "segs": [ {
      "utf8": "the hippocampus \nloses 5% of its neurons every decade"
    } ]
  }, {
    "tStartMs": 100623,
    "dDurationMs": 3575,
    "segs": [ {
      "utf8": "for a total loss of 20% by the time \nyou're 80 years old"
    } ]
  }, {
    "tStartMs": 104198,
    "dDurationMs": 2951,
    "segs": [ {
      "utf8": "to the drop in the production \nof neurotransmitters,"
    } ]
  }, {
    "tStartMs": 107149,
    "dDurationMs": 4330,
    "segs": [ {
      "utf8": "like acetylcholine,\nwhich is vital to learning and memory."
    } ]
  }, {
    "tStartMs": 111479,
    "dDurationMs": 4085,
    "segs": [ {
      "utf8": "These changes seem to affect how people\nretrieve stored information."
    } ]
  }, {
    "tStartMs": 115564,
    "dDurationMs": 2861,
    "segs": [ {
      "utf8": "Age also affects \nour memory-making abilities."
    } ]
  }, {
    "tStartMs": 118425,
    "dDurationMs": 3728,
    "segs": [ {
      "utf8": "Memories are encoded most strongly\nwhen we're paying attention,"
    } ]
  }, {
    "tStartMs": 122153,
    "dDurationMs": 4039,
    "segs": [ {
      "utf8": "when we're deeply engaged,\nand when information is meaningful to us."
    } ]
  }, {
    "tStartMs": 126192,
    "dDurationMs": 3763,
    "segs": [ {
      "utf8": "Mental and physical health problems,\nwhich tend to increase as we age,"
    } ]
  }, {
    "tStartMs": 129955,
    "dDurationMs": 3371,
    "segs": [ {
      "utf8": "interfere with our ability \nto pay attention,"
    } ]
  }, {
    "tStartMs": 133326,
    "dDurationMs": 2412,
    "segs": [ {
      "utf8": "and thus act as memory thieves."
    } ]
  }, {
    "tStartMs": 135738,
    "dDurationMs": 3431,
    "segs": [ {
      "utf8": "Another leading cause of memory problems\nis chronic stress."
    } ]
  }, {
    "tStartMs": 139169,
    "dDurationMs": 3953,
    "segs": [ {
      "utf8": "When we're constantly overloaded with work\nand personal responsibilites,"
    } ]
  }, {
    "tStartMs": 143122,
    "dDurationMs": 2179,
    "segs": [ {
      "utf8": "our bodies are on hyperalert."
    } ]
  }, {
    "tStartMs": 145301,
    "dDurationMs": 2765,
    "segs": [ {
      "utf8": "This response has evolved from\nthe physiological mechanism"
    } ]
  }, {
    "tStartMs": 148066,
    "dDurationMs": 3285,
    "segs": [ {
      "utf8": "designed to make sure \nwe can survive in a crisis."
    } ]
  }, {
    "tStartMs": 151351,
    "dDurationMs": 4684,
    "segs": [ {
      "utf8": "Stress chemicals help mobilize energy\nand increase alertness."
    } ]
  }, {
    "tStartMs": 156035,
    "dDurationMs": 4522,
    "segs": [ {
      "utf8": "However, with chronic stress our bodies\nbecome flooded with these chemicals,"
    } ]
  }, {
    "tStartMs": 160557,
    "dDurationMs": 4312,
    "segs": [ {
      "utf8": "resulting in a loss of brain cells\nand an inability to form new ones,"
    } ]
  }, {
    "tStartMs": 164869,
    "dDurationMs": 3271,
    "segs": [ {
      "utf8": "which affects our ability \nto retain new information."
    } ]
  }, {
    "tStartMs": 168140,
    "dDurationMs": 2029,
    "segs": [ {
      "utf8": "Depression is another culprit."
    } ]
  }, {
    "tStartMs": 170169,
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    "segs": [ {
      "utf8": "People who are depressed are 40%\nmore likely to develop memory problems."
    } ]
  }, {
    "tStartMs": 174730,
    "dDurationMs": 1899,
    "segs": [ {
      "utf8": "Low levels of serotonin,"
    } ]
  }, {
    "tStartMs": 176629,
    "dDurationMs": 2669,
    "segs": [ {
      "utf8": "a neurotransmitter connected to arousal,"
    } ]
  }, {
    "tStartMs": 179298,
    "dDurationMs": 3796,
    "segs": [ {
      "utf8": "may make depressed individuals \nless attentive to new information."
    } ]
  }, {
    "tStartMs": 183094,
    "dDurationMs": 4527,
    "segs": [ {
      "utf8": "Dwelling on sad events in the past,\nanother symptom of depression,"
    } ]
  }, {
    "tStartMs": 187621,
    "dDurationMs": 2880,
    "segs": [ {
      "utf8": "makes it difficult to pay \nattention to the present,"
    } ]
  }, {
    "tStartMs": 190501,
    "dDurationMs": 3024,
    "segs": [ {
      "utf8": "affecting the ability to store\nshort-term memories."
    } ]
  }, {
    "tStartMs": 193525,
    "dDurationMs": 4528,
    "segs": [ {
      "utf8": "Isolation, which is tied to depression,\nis another memory thief."
    } ]
  }, {
    "tStartMs": 198053,
    "dDurationMs": 2020,
    "segs": [ {
      "utf8": "A study by the Harvard School \nof Public Health"
    } ]
  }, {
    "tStartMs": 200073,
    "dDurationMs": 3092,
    "segs": [ {
      "utf8": "found that older people \nwith high levels of social integration"
    } ]
  }, {
    "tStartMs": 203165,
    "dDurationMs": 4230,
    "segs": [ {
      "utf8": "had a slower rate of memory decline\nover a six-year period."
    } ]
  }, {
    "tStartMs": 207395,
    "dDurationMs": 2253,
    "segs": [ {
      "utf8": "The exact reason remains unclear,"
    } ]
  }, {
    "tStartMs": 209648,
    "dDurationMs": 1319,
    "segs": [ {
      "utf8": "but experts suspect that"
    } ]
  }, {
    "tStartMs": 210967,
    "dDurationMs": 3149,
    "segs": [ {
      "utf8": "social interaction \ngives our brain a mental workout."
    } ]
  }, {
    "tStartMs": 214116,
    "dDurationMs": 1377,
    "segs": [ {
      "utf8": "Just like muscle strength,"
    } ]
  }, {
    "tStartMs": 215493,
    "dDurationMs": 3091,
    "segs": [ {
      "utf8": "we have to use our brain\nor risk losing it."
    } ]
  }, {
    "tStartMs": 218584,
    "dDurationMs": 1405,
    "segs": [ {
      "utf8": "But don't despair."
    } ]
  }, {
    "tStartMs": 219989,
    "dDurationMs": 1727,
    "segs": [ {
      "utf8": "There are several steps you can take"
    } ]
  }, {
    "tStartMs": 221716,
    "dDurationMs": 2420,
    "segs": [ {
      "utf8": "to aid your brain \nin preserving your memories."
    } ]
  }, {
    "tStartMs": 224136,
    "dDurationMs": 2090,
    "segs": [ {
      "utf8": "Make sure you keep physically active."
    } ]
  }, {
    "tStartMs": 226226,
    "dDurationMs": 2986,
    "segs": [ {
      "utf8": "Increased blood flow \nto the brain is helpful."
    } ]
  }, {
    "tStartMs": 229212,
    "dDurationMs": 1576,
    "segs": [ {
      "utf8": "And eat well."
    } ]
  }, {
    "tStartMs": 230788,
    "dDurationMs": 3844,
    "segs": [ {
      "utf8": "Your brain needs all the right nutrients\nto keep functioning correctly."
    } ]
  }, {
    "tStartMs": 234632,
    "dDurationMs": 2382,
    "segs": [ {
      "utf8": "And finally, give your brain a workout."
    } ]
  }, {
    "tStartMs": 237014,
    "dDurationMs": 3049,
    "segs": [ {
      "utf8": "Exposing your brain to challenges,\nlike learning a new language,"
    } ]
  }, {
    "tStartMs": 240063,
    "dDurationMs": 3793,
    "segs": [ {
      "utf8": "is one of the best defenses for keeping\nyour memories intact."
    } ]
  } ]
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