Zenith (V), a cyanotype by Ala Ebtekar, whose work was on view last month at Haines Gallery, in San Francisco. Courtesy the artist and Haines Gallery, San Francisco

Researchers identified an outbreak of social-media induced illness wherein young people appropriated the functional Tourette’s syndrome of a German YouTuber, found that atmospheric lead exposure in childhood made adults in thirty-eight countries more neurotic and less agreeable and conscientious, defined seven major feline personality traits by polling the owners of four thousand cats, and described a new form of uncanniness in faces that are lifelike and identical. Testicular volume…