So growing up, it was pretty evident that I was just the healthier twin."

The disparity between the two grew as they got older.

“You would do the STP, the Seattle to Portland bike ride.

Lyndsay Lamb and Leslie Davis holding up a street sign with their names on it

I couldn’t physically do that,” Lamb said as an example.

“I would be able to do a triathlon, but I would be able to do one.

And you would then literally do another one next month.

Leslie Davis and Lyndsay Lamb standing cheek to cheek

My body needed a lot more recovery time.”

These are the tissues that connect and support your organs and body structure.

They hold your muscle fibers together and cover and protect your nerves."

Leslie Davis and Lyndsay Lamb standing with an arm around each other

Now Lamb fasts for 24 hours before she has to fly anywhere.

“I’ve always been super quiet about it …

I’ve never wanted it to be who I am,” she said.

Lyndsay Lamb in black and white photo

“Because that’s just not what I want to be known for.”

Because you would like push through things when it wasn’t in your best interest.

The news changed their lives completely and upended both the sisters' careers.

Miles Lamb and Lyndsay Lamb standing in a sunflower field

The event also raised money for the hospital, with the duo bringing in $28,000.

The designer said that she had undergone a regular mammogram and the results were concerning.

Davis decided to use her experience to also highlight the importance of regular mammograms.

Leslie Davis and Lyndsay Lamb

“it’s so scary!

Happy to hear your results were normal!

I’m 3 years out from breast cancer.

Caught early and cancer free.

Everyone yo get your mammogram!”