What happens to an astronaut's heart?

 

The heart of a spaceman is missing!!

After the increase in the number of flights into space, the scientists and the doctors began to make a physical check up on the astronauts’ bodies to discover if the change in the environment could harm the human’s body.

A study found that when astronauts spend long periods of time at zero gravity in space, their hearts become more spherical and lose muscle mass, which could lead to cardiac problems.

According to research presented on March 29 at a meeting of the American College of Cardiology in Washington, D.C, the physiological changes have implications for how missions to mars and other extended trips to space could affect astronauts’ health. "The heart doesn't work as hard in space, which can cause a loss of muscle mass," study leader Dr. James Thomas, Moore Chair of Cardiovascular Imaging and Lead Scientist for Ultrasound at NASA, said in a statement. "That can have serious consequences after the return to Earth, so we're looking into whether there are measures that can be taken to prevent or counteract that loss.".

Given these effects, we know kind of exercise that could keep the astronauts’ health on long space missions, Thomas also mentioned that the same exercise could the people on Earth        who have severe physical limitations or heart failure to stay healthy.