My muscles are made of stone, my side split maxes out at 45 degrees... I'm one of the most inflexible organisms on Earth. So I've embarked on a quest in becoming supple-bodied, but, as the title asks, is a warm up essential? I'm asking this because my locality gets very cold at this time of the year and takes a century to get body temp rising; this time is the biggest 'put-off' for me wanting to stretch. So was just curious to know the science behind getting flexible generally, and significance of the warm up prior to stretching. Thanks, Adshed.