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9 tips to exercise safely in the London heatwave.

Make sure you start your workout fully hydrated. If you are setting off in the morning, you will be very dehydrated from not drinking for 8 hours. Try and have at least 500ml of fluid (a full GiveMeTap bottle) when you wake up before your workout.  Your body will always try to keep the levels of sugars and salts in your cellular fluid balanced. Just drinking water stimulates your kidneys to produce more urine to keep the concentrations of sugars and salts the same. This means it takes longer for you to rehydrate properly. Try adding some squash to your...