To learn more about what's happening on the International Space Station at any given time, check out NASA's frequently-updated ISS blog or their page about the research and development work happening on ISS.
Depends on your body type and metabolism and your routine. But usually it takes around 3 to 4 weeks for visible results. For me it took me a couple of months to actually see any progress visually.
It could take up to six weeks for you to see results after each treatment. In addition to that, it takes most patients an average of four to six treatments before they see the results they ultimately want.