problem for healthy people." And it doesn't turn 100 years of scientific research on caffeine's performance-enhancing properties on its head. "Caffeine's effect is both psychological and physiological," says Dr Lawrence Armstrong, a professor of exercise

(just 9lbs)."This study proves that calories are the most important factor for weight loss," says Tara Gidus, a sports dietitian (dietdiva.com) and marathoner. "To lose weight, you need to take in fewer calories than you burn - regardless of what

also affect your time as one sneeze closes the eyes for a full second, upsetting your pacing. One sneeze every 60 seconds could add a minute to your 10K time or four minutes to a marathon - and it could destroy a sprinter's race.Q: What can I do if it

shortfall in nutrients, especially carbohydrates. Ironically, feeling dizzy can even be a sign that you’re over-hydrated. "This isn't nearly as common as dehydration," says Dr Lewis Maharam, medical director of the New York City Marathon, "but it can strike

with four different routes of roughly similar length, advises Coates. "Throw a dice to decide which one to do each morning to add an element of spontaneity and safety." Stay safe See yourself as a cyclist, Coates says. "Cars don't look out

on whatever you want on the weekend, you cancel out five days of healthy eating,” says Felicia Stoler, nutrition coordinator for the New York City Marathon. When it comes to shedding pounds, consistency is key. “Aim to consume a similar number of calories

hormones. But when a heavy training schedule puts pressure on your immune system, you can ensure that you make healthy diet choices.The key to maintaining an efficient and effective immune system is to consume enough of the nutrients that play a vital role

," explains marathon world record holder Paula Radcliffe. You simply can't run your best without a strong core: the muscles in your abdominals, lower back and glutes. They provide the stability, power and endurance that runners need for powering up hills