There are many problems that can happen to astronauts in space, such as: Bone loss, muscle loss, dehydration, and decrease blood flow. I think the most important problem is decreased blood flow. NASA says: “The fluids in your body will shift upwards to your head, which could put pressure on your eyes causing vision problems.” My idea to fix that problem is to build a glove that will send pressure through the astronauts hand and will circulate the blood in the astronaut's body better. There are a lot of acupressure points in the hand. The most important acupressure point is on the upper side of the hand above the knuckles. This glove has a button on the top (Above the knuckles.) of it, and by pushing on the button, the astronaut will feel the pressure.