Eat That Frog!

Notes
Chapter 4
1
.  Andrew Blackman, “The Inner Workings of the Executive Brain,” 
Wall
Street Journal
, April 27, 2014.
Chapter 15
1
.  Elizabeth Segran, “What Really Happens to Your Body and Brain During
a Digital Detox,” 
Fast Company
, July 30, 2015,
http://www.fastcompany.com/3049138/most-creative-people/what-really-
happens-to-your-brain-and-body-during-a-digital-detox
.
2
.  Lisa Eadicicco, “Americans Check Their Phones 8 Billion Times a Day,”
Time
, December 15, 2015, 
http://time.com/4147614/smartphone-usage-us-
2015/
.
3
.  Lancaster University, “How We Use Our Smartphones Twice as Much as
We Think,” 
ScienceDaily
, October 29, 2015,
https://www.sciencedaily.com/releases/2015/10/151029124647.htm
.