I've been incredibly lucky all my life. Like my old dad, I've hardly ever been to see the doctor, never had any serious illnesses, and have never even had a headache or toothache. No rheumatism or arthritis.

I had an MRI scan a couple of years ago due to a strange loss of peripheral vision in the corner of one eye. They confirmed that I do actually have a brain, which was a comfort. But no tumour or anything.

My skin is tough as old boots and I never even had acne as a teenager.

My husband however has a series of allergies, and due to his past starvation his bones are a bit fragile. He likes oils and greasy stuff on his skin after showering (eg Nivea moisturiser) and has to watch which shower gels he uses.

He gets severe headaches due to sinusitis and has Paracetamol for this.

I reckon it's just the luck of the draw.