Black holes are possibly one of the most mysterious and unfathomable entities in the known universe. They are generally considered to be black, dense bodies of matter with a gravitational pull that is so strong that even light itself cannot escape their unrelenting grasp.

But, in the largely uncharted environment of deep space, our hypotheses regarding the nature and composition of its constituents must occasionally be found lacking as new evidence comes to light.
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If you didn’t do well in math, it may be because crunching numbers literally hurts your brain.

When neuroscientists look at a human brain under an fMRI machine, while they give them a math problem to do, the pain centers in some people’s brains light up. In one such test, the parts of the brain that perceive pain and bodily threats reacted as if the subject’s hand had been burned on a hot stove.

On the National Geographic website, Jeremy Berlin quotes researcher Ian Lyons as saying, "The anxiety occurred only during anticipation. When they actually did the math problems, they didn’t seem to experience pain. That suggests it’s not the math itself that hurts; it’s the thought of it that’s painful.
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