Many patients lose the ability to be fully independent with 80% stating they need daily support. Others find that energy levels plummet and activities that were once a source of enjoyment are no longer possible. Cancer treatments can also cause depression and anxiety. A side effect of chemotherapy known as “chemo brain” can cause fatigue, depression, mental fog, and other forms of cognitive impairment. A report published by the NHS in 2017 found a link of increased mortality between patients with depression than those without. The independent reports analysed English and Scottish data finding a link between mental distress and cancer mortality, which remained even after other factors such as smoking were taken into account.