This week's health news:
https://www.sciencealert.com/brain-zap-experiment-successfully-reverses-memory-decline-in-older-people \xa0
https://www.cnn.com/2019/04/09/health/max-heart-rate-partner/index.html\xa0 \xa0
https://www.sciencedaily.com/releases/2019/04/190408161643.htm