Gravitational Waves: Lone Body in Universe

[anubodh]

An heavy body near other body gives off gravitational waves at a higher rate than when it is away from any body.
So, if there is only one body in the universe and nothing else.Will it give off the gravitational waves and it's mass will keep decreasing?

 

[Dale]

An heavy body near other body gives off gravitational waves at a higher rate than when it is away from any body.

Where did you get this idea? Bodies don't just generate gravitational waves. They have to have a changing quadrupole moment.