I have a serious problem with my cardiac rhythms. I can only sleep properly if I go to bed around 2 AM. Needless to say, I'm very tired in the morning, and it seriously hampers my life.
I've tried to change that rhythm, but without much success. If I'm severely sleep-deprived, I'll feel tired early on and I can sleep early. But then I tend to wake up, sometimes around 3-4 AM, and feel exhausted the whole next day. Only when I go to bed at 2 AM and allow myself to sleep until 9-10 AM do I feel relaxed and clearheaded.
I've tried supplements (100 mg magnesium) and diets (oatmeal, banana before bed, etc.) without much success.
Most recently, I learned a tip from a blog that walking for a long session (45-60 minutes) immediately after waking up could help change the rhythm. Do you have any other personal tip? I believe it will help a lot of other people on HN as well. Thanks!