In the April 1 SN: Digital tech on the brain, cancer’s sweet spell, elephant sleep stats, ancient stardust spotted, a hydrothermal cradle of life, nutrition in a changing climate, nesting-doll parasitism, a neutrino trio and more.
TOO-GREAT EXPECTATIONS Online reviews by users of over-the-counter cholesterol reduction and weight loss products represent select samples that vastly overstate outcomes for most people. The popularity of online reviews of many medical treatments underscores a growing need for well-conducted clinical trials.
NUDGE BACKLASH Nudging people to make good choices, about their retirement plans, charitable giving or even preventive health care, does not always go as planned.
SOCIAL HIT New lab experiments indicate that physically abused youth have trouble learning to make choices that consistently lead to a reward. This impairment of a basic form of social learning contributes to behavior problems known to occur among abused individuals, researchers say.