To:Robert Garrick,Jeffrey and Erich Segal Re: Articles about the effect of exercise on L-dopa levels Here are two references: 1. Goetz CG, Thelen JA, MacLeod CM, Carvey PM, Bartley EA, Stebbins GT.(1993). Blood levodopa levels and unified parkinson's disease rating scale function:with and without exercise. NEUROLOGY, 43, 1040-1042. 2. Carter JH, Nutt JG, Woodward WR. (1992). The effect of exercise on levodopa absorption. NEUROLOGY, 42, 2042-2045. Hope this will be interesting reading. There is not much out there concerning this topic. Mark ([log in to unmask]) --