Children who eat fish once a week or more sleep better and score higher, on average, on IQ tests than children who never eat fish or do so less than once a week, according to study published last ...

Seo, 44 years old, a mid-career office worker living in Seocho-gu, Seoul, starts each day at 5:30 a.m. by checking his sleep score displayed on his smartwatch. Seo said, “I use the smartwatch to gain ...