The US National Cancer Institute reports that in epidemiological studies and the few clinical trials of tea for the prevention of cancer, the results have been inconclusive. The institute "does not recommend for or against the use of tea to reduce the risk of any type of cancer." ... "Inconsistencies in study findings regarding tea and cancer risk may be due to variability in tea preparation, tea consumption, the bioavailability of tea compounds (the amounts that can be absorbed by the body), lifestyle differences, and individual genetic differences."  Though there is some positive evidence for risk reduction of breast, prostate, ovarian, and endometrial cancers with green tea, it is weak and inconclusive. 
Ben Greenfield is head coach of the Superhuman Coach Network, and an author, speaker and consultant. His blog is at http:// and he can be hired for coaching at http://.
His credentials include:
Bachelor’s and master’s degrees from University of Idaho in sports science and exercise physiology
Personal training and strength and conditioning certifications from the National Strength and Conditioning Association (NSCA)
Sports nutrition certification from the International Society of Sports Nutrition (ISSN)
Advanced bicycle fitting certification from Serotta, the “Harvard” of bicycle fitting schools
Over 10 years experience in coaching professional, collegiate, and recreational athletes from all sports
Ben hosts the highly popular fitness, nutrition and wellness website at http://, which features blogs, podcasts, and product reviews from Ben. He is a frequent contributor to Triathlete magazine and LAVA magazine, Endurance Planet (http://), the outdoor sports magazine OutThere Monthly and has been featured in WebMD, the Spokesman-Review, Inlander magazine, In-Health magazine, Fit-Pro magazine, PTontheNet, Prevention magazine, Women’s Running magazine, and Inside Triathlon magazine.
As a public speaker on fitness, nutrition, and training, Ben hosts one of the top ranked fitness podcasts in iTunes, the Get-Fit Guy (http://), and has been a keynote lecturer at the Hawaii Ironman World Championships Medical Conference, the Coeur D’ Alene Ironman Medical Conference, USAT Art & Science of Coaching Symposium, Can-Fit-Pro Conference, Pilgrim’s Wellness Center Education Series, Fleet Feet Sports Endurance Sports Clinic and REI Nutrition Clinic. He sits on the board of directors for Tri-Fusion triathlon team, the Fellowship of Christian Athletes, and is the official coach for the YoungTri. As a triathlon coach and competitor, Ben competes at Ironman and Half-Ironman World Championships, holds a ranking as of USAT’s top ranked age grouper triathletes, and competes in 15-20 triathlons each year, both nationally and internationally.
I believe there is a development link that is missed (at some point) when kids spend hours in front of a screen or texting. “Let’s pretend” is a game that requires imagination and if kids miss interacting with other kids pretending to be pirates searching for treasure or building a fort with cardboard boxes they will never know that they can make a difference. Working with other kids building a fort they learn social skills without realizing it. They learn to work together for a common goal. No computer screen can teach or help kids to make that connection.