Jason Karp

Food or Exercise?

  I spend a lot of time thinking about which is more important for weight loss and health—food or exercise. I have always believed that exercise is more important, that one really can outrun a bad diet, perhaps because I don’t ever want to give up chocolate or sugar cereals. Admittedly, I’m biased. But not …

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Training Older Adults

  Beginning in the seventh grade, I became fascinated with age—specifically how our bodies’ functional capacities decrease with the passage of time. When I once shared this perception with my 98-year-old grandmother, she said, “Just wait until you’re 80.” I’m still far from 80, so I can only imagine how difficult it will be then …

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Is Nutrition (Diet) More Important Than Exercise for Losing Weight and Looking Good?

  I hear a lot in the fitness industry about the importance of clean eating. Indeed, most fitness professionals quote that physical appearance is 80% due to nutrition and 20% due to your workouts. I don’t know where those numbers come from, but those percentages are unknowable.     If we are to assign a …

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2:00:25, and What That Means for the Rest of Us

  Yesterday, Eliud Kipchoge from Kenya, along with two other East African runners, attempted to run a marathon in under 2 hours, as part of Nike’s Breaking 2 project. On a flat, criterion-style course with groups of pacesetters, perfect weather, on-course nutritional support, and even specially-made shoes, Kipchoge, the Olympic marathon gold medalist last year …

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