One Day There May Be a Drug to Turbocharge the Brain. Who Should Get It? A study found that a hormone meant to protect animals’ brains actually enhanced them. Ethicists are wondering what happens if it becomes viable for humans. https://www.nytimes.com/2019/04/02/health/klotho-brain-enhancement-dementia-alzheimers.html?action=%5B%27click%27%5D&module=%5B%27Discovery%27%5D&pgtype=%5B%27Homepage%27%5D