Do NOT believe the lie, that "I can't do anything about this."
Exercising ones entire being before, during and after chemotherapy will highly increase ones recovery.
Do NOT be like the person I recently met who was told by a doctor they needed to lose weight, and would not even consider it as a possibility. It is true that a doctor will often give news that a person cannot do anything about except take treatment. However, there are hundreds of things every person can do every day to increase the likelihood of a positive outcome of any kind of treatments. Just doing one or two things presses against the disease and spreads hope for another day.