In this episode of On Purpose, Jay Shetty and Rahul Jandial explore how memory works and changes throughout our lives. They discuss different types of memory—from procedural memory that helps us ride bikes to episodic memory that stores personal experiences—and explain how each type responds differently to aging and disease. They also examine the differences between normal age-related forgetfulness and more serious conditions like Alzheimer's and dementia.
The conversation covers practical approaches to maintaining cognitive function, including dietary recommendations and brain-training exercises. Jandial explains how emotional experiences affect memory formation and storage, particularly in cases of trauma, and describes how therapy can help people process difficult memories. The discussion provides context for understanding memory issues and offers strategies for maintaining brain health over time.
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Rahul Jandial explores different types of memory and their varying resilience to aging and disease. He explains that procedural memory, which controls tasks like riding a bike or tying shoelaces, typically remains intact even with aging or dementia. While semantic memory (remembering facts) has become less critical due to smartphones, episodic memory—our personal experiences and recognition of loved ones—is particularly vulnerable to age and Alzheimer's disease. Jandial also describes working memory as a trainable skill crucial for creativity and managing multiple thoughts simultaneously.
According to Jandial, while occasional forgetfulness (like misplacing keys) is normal with aging, more severe memory loss affecting identity and daily function may signal Alzheimer's or dementia. He notes that individuals with dementia often don't recognize their own memory loss—it's typically family members who notice these changes. For concerned families, Jandial recommends discussing memory issues during regular doctor visits, where neurocognitive tests can track potential decline over time.
Jandial emphasizes the importance of cardiovascular health for maintaining brain function. He recommends following a Mediterranean-style "mind diet" rich in fatty fish, plants, and healthy fats, noting that consistent dietary habits over decades prove most beneficial. For cognitive training, he suggests various brain challenges like puzzles, learning new languages, and FDA-approved brain training games, which can improve processing speed and working memory.
Jandial and Shetty discuss how emotional memories, especially traumatic ones, can be involuntarily triggered and deeply imprinted in the brain's limbic structures. While these memories serve protective functions, they can become overwhelming and interfere with daily life. Jandial explains that therapy can help by allowing individuals to revisit traumatic memories in a controlled environment, helping to separate negative emotions from factual events. The goal isn't to forget these memories but to reduce their emotional impact over time.
1-Page Summary
Rahul Jandial provides insights into the various types of memory, their resilience or vulnerability to aging and disease, and how some memories can be honed and improved with training.
Jandial explains that procedural memory, which includes tasks like riding a bike, tying shoelaces, or driving and making exits, generally remains intact despite aging or suffering from dementia. He uses these examples to show that such procedural tasks are habitual and can be performed without focused attention, due to minimal electrical shivers moving through neurons, making the process efficient.
Semantic memory, which involves remembering facts like phone numbers, is becoming less critical, according to Jandial. This change in necessity is attributed to the convenience of information available on smartphones, potentially reducing how critical it is to commit certain data to memory.
Episodic memory, which captures the personal experiences and episodes of life such as autobiographical memories and recognition of loved ones, is particularly vulnerable to the ravages of age and Alzheimer's disease. Jandial describes how this memory type can be eroded, leading to the loss of childhood stories and familiar recognition in dementia.
Types of Memory and Their Differences
Rahul Jandial addresses concerns about forgetting things like keys and explains the difference between normal memory loss due to aging and more serious conditions like Alzheimer’s or dementia.
Jandial notes that it’s common to start forgetting where you've placed items like keys, and such instances can be part of the normal aging process. As people get older, small memory slips are often not a sign of serious problems.
However, Jandial warns that these memory issues can progress over the years to more severe forms of memory loss, such as not being able to find one's way home, which may indicate the onset of Alzheimer’s or dementia. He emphasizes the significance of autobiographical memory, which stitches together a person's life experiences and provides a sense of identity. Memory loss in this area can have dire consequences, often leading to a person feeling lost every day and having to reinvent themselves constantly.
As humans live longer, the brain can start to wear out, leading to memory issues, Jandial explains. He points out that with conditions like dementia, an individual does not re ...
Normal Age-related Memory Decline Versus Alzheimer's and Dementia
Rahul Jandial provides insights on interventions for combating memory loss and improving cognitive health through cardiovascular health, dietary choices, and mental exercises.
Jandial emphasizes the importance of maintaining brain arteries' health as a preventative activity against memory loss and cognitive decline. He believes that regular exercise helps keep the main arteries and fine branching arteries clear, which is crucial for good blood flow to the brain tissue.
Jandial advises a “mind diet” that includes fatty fish, plants, beans, and nuts—similar to the Mediterranean diet, which has been associated with lower rates of dementia in extensive studies. The dietary habits maintained over a decade prove more beneficial for cognitive health than short-term diets. The neurons in the brain are insulated by omega-3 fat, which is essential for the electrical signals to fire faster. This omega-3 fat, which comes from eating fatty fish, is a critical component of the Mediterranean diet.
Furthermore, Jandial discusses the need to continue challenging the brain even in the face of cognitive decline or early Alzheimer's. He suggests puzzles, socializing, taking different routes home, using the non-dominant hand, and learning new languages as ways to train the brain and challenge working memory.
Jandial mentions FDA-approved brain training games for the elderly, indica ...
Strategies For Enhancing Cognitive Function and Memory
Jandial and Shetty explore the complex relationship between emotion, trauma, and memory, shedding light on how memories, both good and bad, are imprinted and the ways in which therapy can help manage traumatic recollections.
Jandial explains that emotional memories can be involuntarily recalled, highlighting that they do not require focus or attention and can be triggered by simple things like a smell. Emotional imprinting of memories, particularly traumatic ones, can make them too easy to remember, often leading to involuntary recollection and lasting emotional pain. Shetty adds that bad memories persist because they might carry a lesson and that negative or traumatic memories can lead to continuous intrusive recollection.
Rahul Jandial discusses how emotional memories are intertwined within the brain's primal limbic structures. He notes that while emotional memories are essential for protection, such as reacting to a snake, they can become so strong that they lead to an inability to engage in normal activities, like leaving the house. The emotional impact of these memories is evidenced by associative physical reactions and fear.
Jandial and Shetty discuss the difficulty of forgetting traumatic memories, as the effort to forget can make them the sole focus of someone’s thoughts, reinforcing the recollections instead of eliminating them.
Jandial highlights that revisiting traumatic memories in a controlled environment can dampen their emotional stamp, allowing a person to disassociate negative feelings from the factual events. Therapy allows for this process of recounting traumatic events until the adverse emotional response is reduced. The aim is not to forget the memory but to separate the trauma, fear, and physical response from the memory itself.
Jay Shetty discusses changing the narrative of a negative memory to lessen its impact, and Rahul Jandial further elaborates that therapy ...
Emotion and Trauma in Memory Formation and Recall
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