"She is a changed person and seems very happy living a more low-key life in Malibu," says a source close to the singer

By Melody Chiu
August 24, 2016 08:00 AM

Miley Cyrus is happier and healthier than ever.

“Miley is a changed person, and she actually seems to enjoy it,” a source close to the star – who will be a coach on the upcoming season of The Voice – tells PEOPLE exclusively.

After reuniting with on-again fiancé Liam Hemsworth earlier this year, “it seemed she was just making changes to please him,” says the source.

Miley Cyrus and Liam Hemsworth in L.A. in 2013

But now, the singer-actress seems “very happy” living a a more low-key life. “Miley is doing yoga and seems very healthy,” says the source. “She rarely parties and is taking better care of herself.”

For more on Miley Cyrus and Liam Hemsworth’s life together, pick up the latest issue of PEOPLE, on newsstands Friday.

Kate Gosselin and her children on the cover of PEOPLE

According to the source, Hemsworth, 26, and Cyrus, 23, are living in adjacent homes in Malibu and can spend time together when they want.

Liam Hemsworth and Miley Cyrus in April

“With Liam back in her life, she seems to enjoy it much more,” adds the source.