Can mobile phones cause brain tumours?
At last we have an answer to this scare - and it's no. Interviews with the 966 British patients with gliomas, the most common form of brain tumour and the one that was suggested to be linked with mobile phone use, have shown they didn't use a phone more often, or for longer, than 1,716 similar people - chosen randomly from family doctors' lists - who had no brain problems. Regular phone users had the same risk of a brain tumour as people who never or only occasionally used one. We haven't had mobiles for long enough to rule out tumours arising after many years of use, but this seems increasingly unlikely.
Why does asparagus make my pee smell?
These smells are chemical remnants of substances that made your food tasty in the first place. Their odour isn't so attractive after your gut, liver and kidneys have had a go at them. It's all about how you process what you eat after you have digested it. Your liver turns it into the substances you need - proteins and fats, along with glucose - for your healthy existence. This results in waste products, and the more volatile of them, that are soluble in water, are excreted by your kidneys. It's not a bad thing that urine smells. Sometimes a different smell in the urine is a sign of disease. The smell of acetone (like pear drops) may be the first sign that you have diabetes. If your urine smells odd, and you haven't eaten anything unusual, it may be a good idea to let your doctor have a sample.