1 00:00:00,450 --> 00:00:07,410 It's not you, it's your limbic system, research over the past few decades has helped us understand 2 00:00:07,410 --> 00:00:10,320 the role of the brain in producing our emotions. 3 00:00:10,890 --> 00:00:17,790 Scientists have identified a key group of their brain structures called the limbic system that underlies 4 00:00:17,790 --> 00:00:19,320 emotional experience. 5 00:00:19,950 --> 00:00:29,010 The limbic system includes areas like the hippocampus, amygdala, cingulate gyrus, olfactory bulb 6 00:00:29,010 --> 00:00:33,330 involved in the sense of smell, thalamus and hypothalamus. 7 00:00:36,480 --> 00:00:42,450 The limbic system plays a key role in activating the body's stress response through the hypothalamus, 8 00:00:42,780 --> 00:00:50,040 which controls our hormone system, thanks to our limbic system, we can feel strong emotions, avoid 9 00:00:50,040 --> 00:00:55,920 danger, form new memories, experience of pleasure and many other essential functions. 10 00:00:56,460 --> 00:01:03,900 The limbic system and parts of the prefrontal cortex are believed to have complementary roles with limbic 11 00:01:03,900 --> 00:01:09,540 regions generating emotions and the prefrontal cortex regulating those emotions. 12 00:01:09,930 --> 00:01:17,730 For example, activity in the amygdala increases when we are frightened, whereas activity in the prefrontal 13 00:01:17,730 --> 00:01:22,680 cortex increases when we try to control our emotions. 14 00:01:23,160 --> 00:01:26,540 At times, the limbic system can be out of balance. 15 00:01:26,970 --> 00:01:35,010 For example, many psychiatric conditions like post-traumatic stress disorder and major depressive disorder 16 00:01:36,030 --> 00:01:38,850 have been linked to overactivity in the amygdala. 17 00:01:39,360 --> 00:01:43,590 It's easy to blame ourselves for our emotional struggles. 18 00:01:44,040 --> 00:01:48,060 After all, it's our feelings and our behavior that are affected. 19 00:01:48,780 --> 00:01:55,650 At the same time, if an overestimate the control we have over our brain function when we've gone through 20 00:01:55,650 --> 00:01:56,670 a major trauma. 21 00:01:56,700 --> 00:02:04,920 For example, we will likely experience a change in the in our hippocampus that has nothing to do with 22 00:02:04,920 --> 00:02:07,620 our will or our strength of character. 23 00:02:09,480 --> 00:02:18,300 Many factors outside our control can affect our brains and emotions, brain activity very based on genetic 24 00:02:18,300 --> 00:02:23,640 differences, current mood changes in the weather, even variety. 25 00:02:24,360 --> 00:02:29,460 And yet we're not to merely passive recipients of our brain states. 26 00:02:29,910 --> 00:02:38,040 Just as experiences outside our control can change our brains, we can also reach them based on how 27 00:02:38,040 --> 00:02:39,750 we choose to think and act. 28 00:02:40,200 --> 00:02:48,150 For example, we can quite literally change the structure of our brains through regular meditation practice. 29 00:02:48,480 --> 00:02:55,680 We can also quite an overactive limbic system and increase activity in Kiprop prefrontal cortex regions 30 00:02:56,010 --> 00:02:57,860 through certain kinds of therapy. 31 00:02:58,380 --> 00:03:05,310 So there is good news when we cannot choose the brain we are born with or control everything that happens 32 00:03:05,310 --> 00:03:05,790 to us. 33 00:03:06,150 --> 00:03:08,820 We can use our brains to fix our brains. 34 00:03:09,330 --> 00:03:15,330 As you do your CBT work, keep in mind that you are changing your brain.