/u/ultraking_x2's posts in /r/askscience

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When I roll around on my upper back on a foam roller and afterwards feel like my posture has improved and my upper back feels more flexible, it's it just because I stretched and relaxed those muscles or do I actually make my spine itself more flexible?

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Regarding split brains and two consciousnesses

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In split brain patients, can the right brain hemisphere communicate via writing and if yes, is it aware of its lack of speech skills?

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Is there some truth to the idea that both our brain hemispheres, which usually work together, could obtain their own 'personality' when somehow the connections between the two are severed? Or is it utter nonsense?

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What are those big blue and red cells in this picture of a tree branch under a microscope?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
When I roll around on my upper back on a foam roller and afterwards feel like my posture has improved and my upper back feels more flexible, it's it just because I stretched and relaxed those muscles or do I actually make my spine itself more flexible?	1
Regarding split brains and two consciousnesses	1
In split brain patients, can the right brain hemisphere communicate via writing and if yes, is it aware of its lack of speech skills?	1
Is there some truth to the idea that both our brain hemispheres, which usually work together, could obtain their own 'personality' when somehow the connections between the two are severed? Or is it utter nonsense?	1
What are those big blue and red cells in this picture of a tree branch under a microscope?	1