Rearranging the letters of 'the human brain' gives:
Ah, a thin number!
(by Bothorth using Anagram Genius) (2007) (pending approval)
Ha! Number in hat.
(by Bothorth using Anagram Genius) (2007) (pending approval)
Other related anagrams without their own page:
"Scientists Implant Human Brain Cells In Mice To Create ‘Supermouse’" -> "Clinic-mammals ('man') & Institute create superb species to run in holes?" (by Aronas Pinchas ) (2014) (pending approval)
"Brain damage" -> "Grab idea man!" (by Mark McNamara using Anagram Genius) (2008) (pending approval)
"Brain damage" -> "Grab a maiden." (by Mark McNamara using Anagram Genius) (2008) (pending approval)
"Brain damage" -> "Damn big area!" (by Mark McNamara using Anagram Genius) (2008) (pending approval)
"Brain damage" -> "Begin a drama?" (by Mark McNamara using Anagram Genius) (2008) (pending approval)
"Brain damaged" -> "Danger: I am bad!" (by Rick Rothstein using Anagram Genius) (2003)
"Brain damaged" -> "I'm a bad danger." (by Joe Fathallah) (2002)
"Brain damaged" -> "I bed a grandma." (by Joe Fathallah) (2002)
"Brain damaged" -> "Bad, mad, in rage." (by Joe Fathallah) (2002)
"Brain damaged" -> "I rage, bad 'n' mad." (by Aronas Pinchas ) (2014) (pending approval)
"The consultant brain surgeon Terence Hope" -> "The NHS soup tureen got a cerebral innocent." (by Wayne Baisley) (2004)
"The consultant brain surgeon Terence Hope" -> "The canteen slurper, eating on the run? Coo, BS!" (by Wayne Baisley) (2004)