Right now, summer is at it’s highest (even in Denmark) and if you are very active you have a higher risk of dehydration. This is of great importance not only for your wellbeing, but also for your performance in the gym.
A decrease in body water from normal levels (often referred to as dehydration or hypohydration) provokes changes in cardiovascular, thermoregulatory, metabolic, and central nervous function that become increasingly greater as dehydration worsens. Similarly, performance impairment often reported with modest dehydration (e.g., -2% body mass) is also exacerbated by greater fluid loss. Dehydration during physical activity in the heat provokes greater performance decrements than similar activity in cooler conditions, a difference thought to be due, at least in part, to greater cardiovascular and thermoregulatory strain associated with heat exposure. There is little doubt that performance during prolonged, continuous exercise in the heat is impaired by levels of dehydration > or = -2% body mass, and there is some evidence that lower levels of dehydration can also impair performance even during relatively short-duration, intermittent exercise (like CrossFit!). For references check out: http://www.ncbi.nlm.nih.gov/pubmed/17921463
Our best tip – invest in some nice, healthy (meaning without phthalates!) drinking bottles and always keep one in your training bag! Also fill the fridge at home will plenty of glass bottles with water, so that you have enough cold water at hand… For an extra delicious twist, add slices of lemon or lime or fresh mint leaves.