Why am I tired all the time?

This tiredness is not ordinary tiredness and sleep does not fix it. Your body is repairing damage, your blood counts may be low, and the illness itself takes energy.

Tell your team how bad it is. We can check for causes we can treat, like low blood counts or a thyroid problem. Do not just put up with it.

Written by two physicians. Checked against patient information from the US National Cancer Institute and Cancer Research UK.