It's not surprising that young people are Canada's most active volunteers, representing about 66 per cent of those who give their time for a cause. Time is, after all, on their side. But our country's volunteering numbers might surprise you. In 2013, 4 out of 10 Canadians volunteered, putting in 1,957,000,000 total hours. This week, National Volunteer Week, we celebrate them, while also asking: How do they do it?