“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.”

“I was shy to share with my doctor about decrease of sexual activity which I occurred for the last couple of years. He advised me Viagra which could realize my sexual drive and fantasies. A feel alive again! Viagra saved me!”

Major airports and intelligence services are unaffected, while the government is still assessing the impact.

Trainee doctors delivering babies are more likely to suffer from overwork and burnout than other specialties, evidence suggests.

The advertising watchdog says they also must not make misleading claims that sunbeds can treat skin conditions or improve mental health.

Consultants in England were due to walk out on 25 November in disputes over pay and working conditions.