Wednesday 9/9

5 Rounds, each for time:

200m Row
12 Burpee to a plate
Rest as needed between efforts

 

 

I thought the story below was really interesting for a couple reasons. First off, of course it’s amazing that scientists have discovered something new in something that’s been studied as thoroughly as the human body, that’s just amazing to me.

Bus secondly, and this is how it ties into CrossFit for me, this discovery proves that we still don’t know everything about what’s going on in our own bodies, regardless of what some may claim. I bring this up because there are still people I encounter who argue with me about the efficacy of CrossFit workouts and that our methods can’t possibly produce the results they claim to because of this paper they read or that study that was published. To me, the story below is a fantastic example that even though we may not understand everything that goes on in the body we can look at inputs (training) and outputs (results) and see what works and what doesn’t.

These are the things we do in the gym every day. We create workouts that impose a stimulus on our athletes and we track (with stop watches or loads) progress. Based on subsequent workouts we then continually make adjustments and changes and tweaks to the stimulus in order to produce the best progress.

In the end no one can argue with results!

Scientists Discover a New Part of the Human Body

Map of the lymphatic system: traditional (left) and as redrawn by the researchers’ discovery. Image courtesy of University of Virginia Health System.

When you woke up this morning, you did so with an entirely new body part—at least in the eyes of science. You can’t see it or touch it, but it will play a crucial role in understanding neurological diseases and immunity.

Researchers at University of Virginia’s School of Medicine recently discovered a long-hidden system of vessels they’ve coined the “central nervous system lymphatic vessels,” which drain lymphatic fluid from the brain to the surrounding lymph nodes.

The discovery, published in Nature, has shaken up the scientific community. The study was headed by Antoine Louveau, a postdoctoral fellow in the lab of UVA’s Jonathan Kipnis, director of the Center for Brain Immunology and Glia. The team detected the vessels after Louveau developed a method for mounting a mouse’s meninges (membranes covering the brain) on a slide without ruining the delicate tissue. When he saw vessel-like patterns in the distribution of immune cells, he tested for lymphatic vessels—and the results surprised everyone. They were also able to find the vessels in human brain samples.

This find is the neuroimmunological version of stumbling across a unicorn. Not only had the system gone undiscovered until now, but textbooks argued against its very existence. As a result, neuroimmunologists have struggled to understand the mechanisms of brain drainage and inflammation.

Read the rest here.

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