Summer begins later today in the Northern Hemisphere, and folks in Alaska will have days of virtually 24-hour daylight.
This pic is from Fairbanks, Alaska. And the time on there is correct--1:00am Alaska Daylight Time...5:00am Eastern Daylight Time.
I haven't researched much into it, but from what I've heard, constant daylight can wreak havoc on one physically and mentally...the same with 24 hours of darkness during winter.