mind bender

And not just sick in the body but in your mind, because you start obsessing.
How Taryn Toomey’s ‘The Class’ Became New York’s Latest Fitness Craze|Lizzie Crocker|January 9, 2015|DAILY BEAST
The questions going through my mind are: How on earth are there Kalashnikovs and rocket launchers in the heart of Paris?
Ayaan Hirsi Ali: Our Duty Is to Keep Charlie Hebdo Alive|Ayaan Hirsi Ali|January 8, 2015|DAILY BEAST
True, this may not be what James Madison had in mind when he was writing the Bill of Rights.
Why We Stand With Charlie Hebdo—And You Should Too|John Avlon|January 8, 2015|DAILY BEAST
And keep in mind that when Huckabee ran for president in 2008, he won the Iowa caucuses.
The Devil in Mike Huckabee|Dean Obeidallah|January 6, 2015|DAILY BEAST

Accusing his opponents of being locked in a Cold War mind-set, it is Stone who is beholden to old orthodoxies.
Oliver Stone’s Latest Dictator Suckup|James Kirchick|January 5, 2015|DAILY BEAST
Other things being equal, the volume of voice used measures the value that the mind puts upon the thought.
Expressive Voice Culture|Jessie Eldridge Southwick
He was too drowsy to hold the thought more than a moment in his mind, much less to reflect upon it.
The Wave|Algernon Blackwood
"There's just one thing I'd like to ask, if you don't mind," said Cynthia, coming suddenly out of a brown study.
The Boarded-Up House|Augusta Huiell Seaman
The vision—it had been an instantaneous flash after all and nothing more—had left his mind completely for the time.
The Wave|Algernon Blackwood
Many British Ferns evidence a marked tendency to “sport,” and this is a fact which the beginner should always bear in mind.
How to Know the Ferns|S. Leonard Bastin