Sleep apnea is short pauses in your breathing while asleep, lasting up to 10 seconds. These pauses can happen multiple times throughout the night, and disrupt your normal sleep rhythms, making it difficult to get restful sleep. People with sleep apnea often snore loudly, also creating sleep problems for their partners.

Sleep apnea is unlikely to be caused by cancer or cancer treatment. However, if you have already been diagnosed with sleep apnea it is important to get it managed and under control before beginning your treatment, as not to compound sleep issues down the road.