[Danzig]

i did a search on blood thinners as performance enhancers, and i found this:

"Blood Viscosity
Like anything else, the thicker blood is, the slower it moves through the body. So anything that reduces the viscosity of blood is going to make it easier for the heart to get a full charge, faster for the heart to eject and quicker to deliver oxygen and remove heat, lactic acid and CO2. On a microscopic scale, at the entrance to capillaries, red blood cells tend to stack up like a traffic jam. This can reduce oxygen delivery. Thinning the blood a little can break up these traffic jams and improve flow. Red blood cells are less sticky when blood is thinned so you get more flowing through capillaries and delivering oxygen.

Secret Weapon #2 - Salycin
Although there are a number things you can take that reduce the viscosity of blood, the one we like best is a natural extract of willow bark called Salycin. As you may have guessed, it is related to Asprin (acetyl-salycilic acid). All blood thinners work about the same, by reducing cell-to-cell stickiness. Salycin is nice because you get all the performance enhancement without the risks inherent in more aggressive blood thinners. "