Bad circulation? Try this next time you take a shower... Get all nice and warm and cozy, and then turn the water as cold as it can go. Leave it cold for 20 seconds, if you can take it. Then turn it warm again. Then turn it cold again. Then turn it warm again. Boy, you will feel like a million dollars when you're done!
I just turned in the final annotated bibliography with 86 sources on 16 pages.