What was Hayden Panettiere's brother's cause of death? Inside the tragic story of her graffiti-artist younger sibling Jansen who passed away at 28

Hayden Panettiere has opened up astir her relative Jansen's February 2023 decease astatine nan property of 28 from an undiagnosed bosom information for nan first time.

The character and singer, 35, told People Wednesday, 'He was my only sibling, and it was my occupation to protect him. When I mislaid him, I felt for illustration I mislaid half of my soul.'

At nan clip of Jansen's death, Panettiere's parents Lesley Vogul and Skip Panettiere said successful a connection that his 'sudden passing was owed to cardiomegaly (enlarged heart) coupled pinch aortic valve complications.'

The New York-born entertainer said that she dealt pinch agoraphobia successful nan aftermath of nan high-profile family tragedy.

The Heroes character said she put connected weight - 'I conscionable ballooned out,' she told nan outlet - amid a spike successful 'stress and cortisol' levels arsenic she dealt pinch nan tragic event.

'I didn't consciousness assured to put connected apparel and get retired of nan house, but I besides knew that I needed to get retired and support moving aliases I'd ne'er extremity looking and emotion this way,' Panettiere said. 

She added, 'It became a destructive hamster instrumentality of, do I consciousness bully capable to spell out?'

The Nashville prima said she has gained a measurement of contented successful nan aftermath of nan tragic events.

'When thing that monolithic has happened to you, you really study to prime your fights and conscionable not fto nan small things upset you,' Panettiere said. 'Because erstwhile thing truthful horrific, truthful deep, truthful catastrophic happens successful your life, there's not overmuch that tin really stone you.'

Panettiere said her brother's passing is thing she 'will ne'er beryllium capable to get over.'

She added, 'I will ever beryllium heartbroken astir it. I will ne'er beryllium capable to get complete it. No matter really galore years spell by, I will ne'er get complete his loss.'

Panettiere appears successful nan upcoming movie Amber Alert, which is owed successful theaters September 27.