out fat-burning enzymes, which help your aerobic system work more efficiently. Also, synovial fluid (the lubricant in your joints) warms up, helping your body to move easily. "Too many beginners skip this step without realising how much more
winter running. Breathable layers and gloves are key, and a buff to keep my ears warm (head gets too hot in a beanie). I like the fact that your eyelashes have little icicles on them when it's really cold. Down side is.. whump! That'll be black ice
