Ключевые слова: abstract, apoplexy, brain, cerebral, challenge, communication, concept, confusing, connections, convoluted, dementia, depression, design, desperate, disease, education, eeg, epilepsy, function, head, health, hemisphere, hopeless, human, icon, illness, illustration, intractable, intricate, knot, medical, medicine, migraine, nervous, neurology, person, problem, rope, seizure, silhouette, spasm, tangled, task, thinking, treatment, trouble, tumor, unsolvable, unsolved,