The Doc Replies
Our expert answers your medical questions
Can health anxiety cause physical problems? My daughter has been diagnosed with the condition but genuinely seems unwell.
Health anxiety is not uncommon. By definition, it is when a person spends so much time worrying about becoming ill that it takes over their life. Often sufferers cannot be persuaded – even after examination by a doctor – that they are okay. They constantly need reassurance and, once reassured, might move on to another health problem.
They can become distressed, which can affect family relationships and in some cases cause them to lose their jobs.
Anxiety in itself can cause headaches, palpitations and weight loss. There are formal treatments. But, first, it might be helpful to keep a diary to see how often these anxious thoughts occur. It can be helpful to challenge them. Distraction is helpful, like going for a walk or engaging in sport.
Cyberchondria occurs when people constantly research symptoms on the internet, often leading to worries about conditions they don’t have. Speaking to a GP can put symptoms in context and reassure. If that doesn’t work anxiety can be tackled with mindfulness or cognitive behavioural therapy.
I am keen to try fasting and plan to have nothing but water at the weekends. Is it safe to do so?
Intermittent fasting may be beneficial, but a whole weekend of fasting may be too much. It can be enough to limit the time of day when you eat, for example not eating after 6pm. There is some suggestion that fasting lowers blood sugar and may help with insulin sensitivity. It is better, though, to have a generally healthy lifestyle. It is not advisable to fast if pregnant or breastfeeding, have an eating disorder or other medical conditions. If you are unsure speak to your GP.
I’m 84 and my son recently gave me a mobile phone. I’m worried it will cause cancer. Is there a risk?
It is unlikely at 84 DNA damage will cause you a problem. I would be more worried about children whose nervous systems are developing. The current official view is mobile phones don’t cause cancer.