Hayden Panettiere recently opened up in an emotional interview about the sudden death of her younger brother.

She shared that she will always be heartbroken over his loss.

The actress, who had been sober, single, and getting back to work, was devastated when her brother died suddenly from an undiagnosed heart condition at just 28 years old.

Panettiere, 35, explained that she felt like she lost half of her soul when her brother passed away.

She struggled with agoraphobia and rapid weight gain due to the stress and cortisol in her body.

Despite these challenges, she knew she needed to keep moving and get out of the house.

With the help of a personal trainer, Panettiere slowly started to heal.

She found solace in long walks and conversations with her trainer, which felt like therapy sessions.

The endorphins from working out helped elevate her mood and reduce her insecurities.

Panettiere is still learning to live with the loss of her brother, but she has gained new perspectives on life.

She shared that after experiencing such a deep and catastrophic event, not much else can really upset her.

While she looks forward to the release of her new movie, she is mostly grateful for feeling more like herself every day.

However, she acknowledges that she will never fully heal from the trauma of her brother's death and will always be heartbroken about it.