When I was younger I used to do weight training in the winter to supplement my running. Well over the last few years I have been telling myself that I need to get more flexibility, but of course I would either forget this or just do it for a couple of days then stop. Well this winter I have finally got around to it and now usually after my morning run I do a few exercises to strengthen my core and some yoga to improve my flexibility. I have noticed an improvement in the way I feel when I run and the last few days my sleep seems to have also got better. As time goes on I will add more and plan to continue throughout the year and not just for the winter.