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Brain tumors are abnormal growths of cells in or around the brain. They can be primary (originating in the brain) or secondary (metastatic, spreading to the brain from cancer elsewhere). They can also ...

The organisms may be related to modern arachnids, scientists say. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Two tiny fossils, each smaller ...

The vagus nerve is an integral part of your autonomic nervous system. This part of your nervous system controls the things your body does without your conscious input, such as breathing, digesting ...