Embracing nature is key to optimizing brain health from "summary" of Your Brain On Nature by Eva M. Selhub, MD,Alan C. Logan
Embracing nature is not just a pleasant pastime; it is actually essential for the health of our brains. Our brains have evolved in natural settings over millions of years, so it makes sense that they function best when surrounded by the sights, sounds, and smells of the natural world. When we spend time in nature, our brains enter a state of relaxation and restoration, which is crucial for maintaining optimal brain health. Research has shown that spending time in nature can have a profound impact on our brains. For example, studies have found that people who live in urban environments, where access to nature is limited, are more likely to experience mental health issues such as depression and anxiety. On the other hand, people who live in rural areas or have regular access to green spaces tend to have lower rates of these conditions. One reason why nature is so beneficial for our brains is that it helps to reduce stress. Chronic stress has a detrimental effect on the brain, leading to shrinkage of the hippocampus, which is involved in memory and learning. Spending time in nature, however, has been shown to lower levels of cortisol, the stress hormone, and activate the parasympathetic nervous system, which promotes relaxation and healing. In addition to reducing stress, nature also has a positive impact on our cognitive function. Research has found that children who spend time in green spaces have better attention and memory skills compared to those who do not. Similarly, adults who engage in activities such as gardening or hiking have been shown to have improved cognitive function and a reduced risk of cognitive decline as they age.- The evidence is clear: nature is essential for optimizing brain health. By spending time in natural settings, we can reduce stress, improve cognitive function, and support the overall well-being of our brains. So, the next time you're feeling overwhelmed or mentally fatigued, consider taking a walk in the park or spending some time in your backyard. Your brain will thank you.
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