Can eggs make us smarter?

Eating selenium-rich foods like eggs could help keep your memory sharp and your brain speeds on high as you age.In rural china,it is found that elderly people who got at least the recommended daily value of selenium(about 55 micrograms per day) had cognitive test scores that put them in a league with people 10 years younger.If you have a cholesterol problem though,skip the yolk and go for omelettes made of egg white.