Girlfriend's fear consumes her life

Okay, hello everybody

Based on the title, its literally like that. My girlfriend is 24 years old, well almost.

She lost her grandma to cancer, when she was very little. She doesnt know what type of cancer.

When my girlfriend was 18, she lost her mother to breast cancer, who was 57 years old.

In 2025, my girlfriend has lost her sister to metastatic ovarian cancer. Sister was 37 years old.

Fast forward to now, a year later, my girlfriend developed a fear that it is genetics, and that she is next, its just a matter of time. Its hard for her to sleep sometimes because of that thought.

Whenever something hurts, she gets consumed by fear.

Cold, PMS, headache, stomach ache, whatever.

She is also scared to do a genetics test, because if she were to find out that results are bad,

she couldnt live with that.

But she also says she feels like if she were to live a life in fear, meaning going to check ups often,

eating healthy, having good healthy habits, she thinks she will attract it to herself.

Has anybody else had a similar story? Does therapy help? How can she persevere?

Thanks in advance, hope everybody is good.