The Science of Stress: From Psychology to Physiology
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- Опубликовано: 31 май 2024
- What goes on in our bodies and minds to cause stress?
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Stress is our natural reaction to physical or emotional pressure, encompassing everything from too much work to being tortured. But how does stress affect our memory, mood and thinking? And what effect does stress have on our overall health? Vincent Walsh and a panel of experts investigate.
Vincent Walsh is a neuroscientist at University College London interested in finding out how the brain works. He is particularly fascinated by the the things we take for granted, like dealing with stressful situations.
Joe Herbert is interested in the role of the brain in adaptive responses, with particular reference to the reciprocal interaction between hormones and the brain. He is a Professor at the Department of Clinical Neurosciences at the University of Cambridge.
Shane O'Mara is Professor of Experimental Brain Research in Trinity College Dublin. His research focuses on the relations between cognition, synaptic plasticity and behaviour, in the context of brain aging and depression.
Julie Turner-Cobb is Professor of Psychology at Bournemouth University. She researches the effects of psychosocial factors, particularly stress, coping and social support, on endocrine functioning across a range of acute and chronic health conditions in adults and children.
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So much of this research is done by people who have no conception of how stressful life can be day today because they come from middle to upper socioeconomic classes. I thought it interesting that Dr Cobb talked about the stress of good child care as being beneficial. her presentation did not describe poor child care, no child care/ neglect or abuse, maybe because the most urgent question to her is "are parents hurting children by sending them to good daycare vs keeping them in a low stress familiar environment like home?" A very upper middle class dilemma. I don't think we should be discussing resiliency and the beneficial effects of stress until we've addressed the very harmful effects of extreme stress. Because extreme stress is the most prevalent state, because poor people is the largest group of people.
So true 👍
Im the poor kid on the block 😘
@@panosvrionis8548 I feel for you Kenny
A few of you have asked us about the slides in this video. We had to remove a few figures from Julie Turner-Cobb's slides for copyright reasons unfortunately. We've left the references in so anyone interested can follow them up separately, but sorry for the gaps, hope you've enjoyed the rest of the video.
The third talk (34:40) on the (in)efficacy of torture as a means of extracting "veridical information from memory" (ie the truth) was inspired. I have never seen the case against torture presented in quite so powerful a way. I found it compelling and profound. All three talks were excellent.
Modern life is unnecessarily stressful; it slowly destroys people's health and erodes their ability to learn and think.
that's why the fittest always survives, strives and shine
Our modern obsession for comfortably is what constitutes unnecessary stress. People nowadays are stressed if they don't have wifi We're making ourselves weak bc we can no longer handle even being slightly uncomfortable. Everything is so easy nowadays. Infinite knowledge at our fingertips, an abundance of food, and the ability to get everything we need without even leaving the house. We have to put ourselves in uncomfortable situations for short periods of time such as fasting, abstinence from social media, ice baths, etc. These things build character, adjust your threshold for stress, and lead to a more fulfilling life IMO.
I really don't understand. Why the life expectancy has improved compared to what it used to be earlier.
Stress scale aka social readjustment rating is a great way of checking how much chance you have to fall seriously ill due to stress level. It is relatively easy and incredibly accurate. Have you tried?
fascinating in its entirety.
Absolutely fascinating. It's so interesting to learn how chemistry and the brain cause things like stress. Thanks for sharing.
Omi
Quick suggestion: Use a de-esser on the audio feed (especially for voices like Julie Turner-Cobb). Certain syllables can be too harsh and distracts from these amazing talks :)
Haha, they won't even hire someone to make them slide decks - what are the chances they have a sound engineer on board?
45:34 "SLEEP DEPRIVATION ... USED BY THE POLICE ... ". Again from my personal experiences, being arrested by white policemen here in white Australia. This sleep deprivation is done also "accidentally". A few rotating shifts of police interrogation, without sleep for the prisoner (myself). Best done after a long day followed by a long night. Then have the "prisoner" signing hard to understand pieces of paper ("so that it shows that you have received this paper in your possessions").
Several factual omissions in this video. All living organs have various states of on-duty "stress" or alertness. Movement in & out of these many varying stress levels is possible, including skipping some of the intermediate stress levels.
"Eustress" is the "best" or optimal stress for certain functioning. It depends on the function: immediate short-term results, or non-damaging long term results.
The "living organs" here could be any: biochemical, silicon or whatever chemical based. All these "living organisms" can be mathematically represented. They all have various trigger levels, cache reserves, rubbish-disposal, etc. Cognitive science of these living organisms will eventually prove (mathematically) that my assertions here are very correct.
If you want to create an enemy - torture them, or those they love and cherish.
When you inflict pain you make enemies, not information.
Those who like to harm others say that torture works.
When you train a person to torture others, what does that person write on their resume?
What university do you go to for torturer accreditation?
Where are the career councilors who place potential torturers on the correct career path?
Machiavelli told us to be on the good side of a person or to eliminate him completely. Never inflict pain on someone and then let him go free because he will eventually come back at you to exact revenge.
So it is not stress tolerance( resistance) what we need to develop but stress sensitivity / resilience. It is like to try to develop insulin resistance which leads to diabetes, otherwise
the graphs / images Turner-Cobb refers to during the cortisol aspect of her talk are copyrighted ?
First guy was awesome
Odious dress sksk awwe Ac cv
Hey I’m 0. I can only eever
Hey
38:50 EXTREME STRESSOR STATES (of the brain). Not quite accurate. Described here are only some of the parts of the autonomic system. In the autonomic system here are missing the proximal sensor. The "drowning" sensor is really the oximeter sensor.
One year ago (Oct 24th, 2018) I had my heart replaced with a bypass machine, for a valve replacement, etc (Australian Capital Territory). Post surgical recovery tool about two weeks, full conscious, with sleep deprivation, electrolyte imbalances, etc. My autonomic system was haywire for about one year, post surgery. Hospital instrumentation & procedures mapped these crazy effects, both physiologically & psychologically.
read somewhere that the only 'positive' outcome from torture was when the victim was threatened with it being imminent. Once they saw the instrument/s of torture they would immediately give up information. The article was referring to account/s given in the medieval period which in turn referred to when the victim was first introduced to the 'torture chamber'.
Why not showing the slides properly? The lady is telling you can see the graph again and again but only for live audience present there..
Data is copyrighted unfortunately so RI can't show them.
Resourceful time being here... Insightful understanding on Stress, both in, Physiological approach & Psychological perspective... 👍
7:57 I have heard some talk saying cognition/awareness comes later, after the physiological effects. It's not your conscious brain feeling fear and telling your body to get ready to deal with the source of threat. It's your body telling you it's under stress. When you are consciously aware of a person with a gun, your body already reacts to it and then makes you feel fear. In other words, fear is a body state that your conscious brain feels. So, how does the non-conscious part of our brain knows whether it's a threat or not? Instinct and experience. And on the safe side, it also over reacts.
That sounds familiar. My understanding is that with traumatized individuals, say vets, a loud sound will immediately bypass higher cortical analysis that facilitate analysis and generate an appropriate response. Trauma creates a shortcut to an immediate reaction.
Wasn't there a time during our migration out of Africa when our numbers as a species was likely reduced to just a few thousand remaining humans? I bet that was a very stressful period, too!
17:49 those women did NOT get the joke 😂😂
Wait, I was so interested in what he was saying. Seemed like he ran out of time so suddenly.
Loved the talks and knowledge shared, all except “While you’re alive” was quite ageist...
I completely agree.
15:50 epigenetics… can we undo (the damage)? So far we cannot. Permanent.
2:15
The Trendelenburg position is no longer used medically? Really?
I wonder if I got any of those kinds of questions wrong on the NCLEX-RN. I remember learning the ABCs of resuscitation only to have them changed to CAB. I sense a fatal conceit among the so-called intellectual society, but that's nothing really new.
Research has shown that it doesn't work, but there are still hospitals that use it in practice.
"From first day of school to first day at Guantanamo."
Gallows humour
What did he say on 18:28 minute, please? That depression is not what?! My ear of non-english natively speaking cannot catch what he said on that moment :))
single illness
even the subtitles are all over the place in some sections of his presentation hahaha
Speaaking on behalf of my partners change in mentality after my heart attack, I think it was dissapointment I made it through ;)
Medical Cannabis Spain hahahaha amusing
OMG, Freud is alive!
:o)
The speakers sounded very repetitive, rushed and a felt that they could of prepare the presentations in a way that they limit the amount of fluff and share more substance. I
49:18 "HUMAN INFORMATION GATHERING". Missing are the main subterfuge methods of the interrogator: pretend to not be an information gatherer (e.g. Help-line, counsellor, "friend", etc).
Looks like simon cowl or whatever his name is
Kyle55 Savage cowell
I go to Cmr. Don’t show this to high schoolers. It’s boring
46:30 "DOES TORTURE WORK?". Yes. It works very well. It shows that the official criminogenisis (crime causing) methods are working, as are the crime treatment methods are working. These scientifically accurate records are proof that the social justice people are doing a very good job. Further funding of these worthwhile social justice people is needed.
8:50 Cortisol / Steroid, testosterone and progesterone are also steroids.
Whistles !!!
Is he Morrissey’s brother?
Astonishing that a great institution as the Ri is unable to make a proper show of slides for the video. Even the speaker can't read her own slides. Quite disappointing.
Looking at how different all the slides look, I'm pretty sure the scientists make their own slides.
It's a common thing. Every day, it happens in millions of meeting rooms, lecture theatres, etc all over the world. They can't turn on the projectors, the projectors can't get the signals, only one of the two screens get the signals, the softwares screw up the slides, symbols and figures, the slides are badly prepared/shown, etc. Almost inevitably people have to fiddle with it for 10 or 15 minutes, then they call up the technician. I am prepared to argue we haven't fixed the problem of presentation projectors with our 21st century science and technology. The latest technology just creates more sophisticated way to use it, but hasn't solved any basic problems. Any young people who want to be the next billionaire, make a goal to solve this problem.
not that bad for women, women live longer than men FACT
that's actually not a given fact. read a book
North Korean dictator should watch this video.