I recently received a stern lecture from my doctor about my blood pressure, "bad" cholesterol and blood sugar all being too high (way too high in the case of my blood sugar - the word "prediabetes" was used and that definitely got my attention!) I am a 45 year old female otherwise in good health. I have started walking on a treadmill. Over the last seven weeks I have worked up to 45 to 50 minutes on the treadmill, incline 8.0 and speed between 3.5 and 3.7 (a brisk walk for me). I do this at least five times a week. The exercise has definitely had a positive impact on my mood, and my clothes feel a bit looser. I don't know if I have actually lost any pounds - my doctor would like me to lose 40 pounds. I am not weighing myself yet because in the past I have found that to be discouraging. For now, I am going by how I feel and I must say I feel more energetic and happier overall. What treadmill speed, incline and duration would you recommend to address these health concerns? My main concern is to get my "numbers" back down with the hope that the weight will take care of itself. How long should I wait before having the blood tests done again to measure any improvement? I don't want to look for improvement too soon and get discouraged. I am prepared to be patient and am giving myself one year - after all, it took me about 20 years of inactivity to get this way! I'm trying not to kick myself too much but I do feel down on myself for having let this happen. Any tips and encouragement would be very much appreciated.