The Vegetable World's Ugly Duckling: Celeriac. Celeriac -- also known as celery root, knob celery and turnip-rooted celery -- is cousin to anise, carrots, parsley and parsnips. In winter, it's a great alternative to potatoes and other starches. Jack Staub.
As part of their 60 or more minutes of daily physical activity, children and adolescents should include muscle-strengthening activities, like climbing, at least 3 days a week and bone-strengthening activities, like jumping, at least 3 days a week.
Almost 75 percent of people aged 15 years and older who engaged in a sports and exercise activity on an average day in 2003-06 did so for less than two hours. The most common exercise duration was between 30 and 59 minutes. Source: American Time Use Survey | Chart Data.