My mum has always led a healthy lifestyle, never smoked, drank little, plenty of veg etc etc. No sugar in cooking either as my dad is a type 1 diabetic and has been for decades. She had bowel cancer about 20 years ago (same as her mum died from), got a 5 year all clear following an operation and chemo. Got it again 10 years later....had chemo, again another 5 years all clear. Then Liver cancer...this time treated with radiotherapy...and now she has it in one of her lymph nodes. Docs want to treat with herceptin but you can't have that until you've had chemo so that's what she's on now. So much for a healthy diet and lifestyle...in her case anyway.