When you’re running something as long as a half or full marathon, it’s the small things that can make a massive difference. The socks you wear can be the difference between blisters and happy feet. How you tie your shoes can either cause or prevent black toenails. The food you eat the day before will impact how much energy you have, while the kind of breakfast you choose will either leave you feeling ready to run or swallowing down undigested globs at mile five.

Arguably one of the most important aspects of long distance running, however, is hydration. We’ve spoken loads on Strong Women about whether you really need to drink eight cups of water a day, how dehydration can impact mood, and whether cold or warm water is more hydrating, but knowing when and what to consume to stay topped up while running is a real skill.