"Each body starts the day differently—and those individual differences need to be researched more closely," Spitznagel says.

2019年12月四级真题（第三套）阅读 Section B

However, one of the review's researchers, Mary Beth Spitznagel, says there is "reasonable" evidence breakfast does improve concentration—there just needs to be more research.

2019年12月四级真题（第三套）阅读 Section B