“We were at the edge of divorce when I decided to try this. Years and years without delight of orgasm and sexual satisfaction. This could ruin any life but not ours. Viagra worked and I always keep the pill near my bed as nobody knows when my wife asks ...

“Honeymoon returned and my husband feels like a teenager again. His erection is the same as at our first date 30 years ago. He feels like a man again, his penis is hard with a big head so he can be proud of it again. Viagra really helps.”

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.