You are given a sentence in Japanese. Your job is to translate the Japanese sentence into English.

ネアンデルタール人や動物からも見つかります
And we even find it in neanderthals and animals.

留まらずCSFは血管の外壁沿いに脳中を流れ血管の外壁沿いに脳中を流れ血管の外壁から脳内に流れ込みます血管の外壁から脳内に流れ込みますこれは脳細胞間から出る老廃物を排出する手助けの一過程です
Instead, the CSF was pumped back into and through the brain along the outsides of the blood vessels, and as it flushed down into the brain along the outsides of these vessels, it was actually helping to clear away, to clean the waste from the spaces between the brain's cells.

20世紀の大部分にわたって自閉症は信じられないほど稀な状態像だと考えられていました

For most of the 20th century, autism was considered an incredibly rare condition.

