When you sweat during a run, the fluid you lose must be replaced or your body becomes dehydrated (short of water) and less efficient.

Whether it's your first 5K or your nineteenth, following an effective Training Plan will see you to the Finish Line.
You can download our Official Training App, Coopah, below for a plan tailored to you, or you can check out our free Beginner's 5K Training Plan.
Below you'll also find training tips and tricks.
When you sweat during a run, the fluid you lose must be replaced or your body becomes dehydrated (short of water) and less efficient.
In any running event, your mind will tell you to slow down or stop running long before your body is at its limit. That’s because your brain wants to preserve as much energy as possible –by telling you you’re tired, it’s preventing you from running yourself to exhaustion.
Once you’re into the groove and running regularly, your next ambition might be to get faster. Fartlek sessions will help you move that dial...
If you’re unsure what you should be eating the day before the Brighton Marathon 10K, let’s go back to basics and look at the 10 top foods to eat before Event Day…