"Many survivors are not going to die of cancer anymore," Kumar said. "They are going to have problems with obesity, metabolic syndrome and other diseases that are very common in the U.S. anyway, and this is a little bit more vulnerable group."
After months of treatment, it's important for cancer survivors to work to get their strength back and improve their aerobic capacity.
"It's really important to be obsessive about what they do for themselves," Nagi said. "Give it your all: do yoga, get more flexible, walk, eat right. Become very obsessive about what you're putting in your body."
The U.S. National Cancer Institute has more on how lifestyle can help prevent cancer.
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