I exercise. But I've NEVER seen one like this. I don't think my knees could take it.

@TheOneyouwerewarnedabout Ever heard of Jim Fixx? He ran the Boston Marathon and wrote several books about running for health benefits. He died at the age of 52 while running. A lot of running can oxidize the cells, which is not a healthy thing. I knew one of the university’s women’s track members and at the end of the school year she was feeling so bad she said she was going to give up her track scholarship and move back to her home state. (She was crying when she told me about it) I suggested she go to the doctor and get checked out