“I take 20 mg Cialis pill and it works as expected but after sexual intercourse I sometimes feel muscle pain in the back and fatigue. I do not know if this is because I work like a stud or it is a side effect. Anyway I am lucky that I gave it a try.”

“It is not fair that everybody knows about Viagra, Levitra worked perfectly for me and moreover it is less expensive and easier to find. I almost have not experienced any side effects, at least those severe to make sex impossible. Works like a charm.”

The approach focuses on the patient priorities, seeing the same clinicians, and involving people close to them.

Without brain surgery guided by live AI assistance, Rhys Hibbert could have lost his sight to a tumour.

There have been decades of mistreatment and mismanagement of those who seek help later in life, say experts in a new, damning report.

They work better than patches, gum or pills, the most up-to-date evidence suggests.