For the past few months I have been doing lots of training for a sporting event that I am taking part in next summer. I exercise a few hours four days a week and absolutely love it and I am feeling great. I have lost quite a lot of weigh taking my BMI to just over 20. Recently though I have noticed that my sex drive has decreased and it is taking me much longer to get in the mood and to orgasm. Do you think this is linked? The exercise is the only thing that's different in my life.