You want to become more physically fit, but you often make excuses for why you don't have time to go to the gym. what is the best way to remedy this situation?

70 % i think is the answer.

during longer space exploration trips, crewmembers may develop vision impairment risks and short-term cardiac atrophy or a decrease in the size, strength, weight, and activity of the heart during space flight because they can experience microgravity. in addition, the long-term medical condition is loss of bone mineral density and radiation exposure.