Games held for second time at Tel Aviv's Beit Halochem center for wounded veterans; 65 UK participants and their families tour the country as part of the week-long event

81-year-old Effie Hertzke, a retired nurse, jokes with Channel 12 about her fitness as she's interviewed on treadmill

In his book 'Exercised: Why Something We Never Evolved to Do is Healthy and Rewarding,' Daniel Lieberman tackles myths and inaccuracies about physical fitness and the need for rest