Hi there, I am a 26 year old male with very low HDL and signs which may indicate pre-diabetes, and I am curious what I can do to curb any trends in this direction. I have a family history of heart disease, diabetes, and obesity. When I was 20-21, I was able to reduce my bodyfat percentage significantly through the use of good diet & exercise combined with chromium picolinate and pyruvate. Recently I have been focusing on lifting weights vs. aerobic exercise and my fat levels have risen considerably. There is no reason to believe I am eating significantly more fat, so I am worried that this may be an indication of something else. I have very low HDL, but total cholesterol is in the margin of normal. It is very difficult for me to sustain significant aerobic activity - i.e. say more than 2-3 miles of running - I don't know if this is because of poor cardiovascular health or poor energy transfer/metabolism or some sort of strange combined effect. Any advice or thoughts on supplements (niacin, chromium, etc) that can assist this problem and any insights on my exercise pattern? Would appreciate your help. Thanks.