SOLAR SYSTEM

Detailed explanation-1: -Astronauts have to exercise almost 2 hours a day on special exercise equipment to make their muscles work and stay healthy for their return to Earth. Even on Earth, with gravity pulling against us as we move around, we need to exercise to maintain healthy and strong muscles.

Detailed explanation-2: -ARED: Advanced Resistive Exercise Device Type of exercise: Maintains muscle strength and bone density by targeting the major muscle groups. Special features: This device uses vacuum cylinders. They exert up to 272 kilos of resistance on a bar or cable. The device imitates free weights used on Earth.

Detailed explanation-3: -Without regular use and exercise our muscles weaken and deteriorate. It’s a process called atrophy. Studies have shown that astronauts experience up to a 20 percent loss of muscle mass on spaceflights lasting five to 11 days.

Detailed explanation-4: -Without the proper diet and exercise routine, astronauts also lose muscle mass in microgravity faster than they would on Earth. Moreover, the fluids in the body shift upward to the head in microgravity, which may put pressure on the eyes and cause vision problems.

Detailed explanation-5: -Several consistent medical problems have been encountered by astronauts during space flights. These include vestibular dysfunction, weight loss, increase in height, upward fluid shift, anemia, cardiovascular deconditioning, muscle atrophy, and bone loss.

Detailed explanation-6: -The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.