If a single supplement could boost your mental performance — by increasing alertness and focus, clearing brain fog, sharpening your memory and reducing the urge to procrastinate — you might feel as if you stumbled upon a revolutionary hack for productivity.
“This is something people have been searching for since the dawn of civilization,” said Dr. Joshua Cahan, a cognitive neurologist at Northwestern Medicine.
Yet despite claims by many supplement makers that their brain-boosting capsules, gummies and powders do just that — with one company saying its “smart pill” promotes mental skills including “focus, learning, clarity, alertness, cognitive