Have you ever been part way through a race or event and simply found you could not continue? Did your legs feel like lead, you feel extremely tired and may even get the shakes or feel dizzy. If you weren’t expecting it you may not really know what is happening but it is highly likely that you are bonking or hitting the wall as it is sometimes known. This is when your blood sugar levels dip very low and your body is not able to recycle stored glycogen fast enough to produce more glucose for fuel. In this blog we are going to explain why it happens and how you can avoid it plus give you fuelling strategies to enhance your performance.