Inclusion Criteria:

- Young adult between ages 21-39 diagnosed with cancer (excluding non-melanoma skin
cancer) at age 18 or older

- At least 1 year beyond date of diagnosis with no evidence of progressive disease or
second primary cancers

- Completed cancer treatment

- English-speaking and writing

- No pre-existing medical condition(s) or contraindications that preclude adherence to
an unsupervised exercise program, including cardiovascular disease, congestive heart
failure, pulmonary conditions, renal disease, and severe orthopedic conditions

- Not adhering to the American Cancer Society's recommendation of at least 150 minutes
of moderate-intensity exercise per week (<150 minutes/week)

- Have access to Internet service and an active Facebook account

- Willing to be randomized

- Have indicated consent by checking "yes" to the online consent form

Exclusion Criteria:

- Non-English speaking

- < 21 and > 39 years of age

- Diagnosed with cancer less than one year previously or still in treatment

- Pre-existing medical condition(s) that preclude adherence to an unsupervised exercise
program, including cardiovascular disease, congestive heart failure, pulmonary
conditions, renal disease, and severe orthopedic conditions