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.
How long you need to wait to exercise depends on how big the meal was. If itâs something small, like around 200 calories, you could probably exercise right after eating. However, if youâre eating a large meal, you may need to wait more like 2-3 hours. The smaller the meal the less it will impact your work out.