My husband, and his mother before him, were being treated for IBS, including "eat more fibre - wholemeal bread is good" for many years. When he almost collapsed at work and was found to have almost zero iron and folate in his system, he was referred for tests and found to have Coeliac disease. The very thing that had been recommended, bread, was actually part of the problem. His mother had died a few years before, but his GP now says that it's almost certain she also had CD, given her symptoms and the genetic link.
It's always worth trying these things - it's not as if you will come to any harm by cutting things from your diet, as long as what is left is balanced and you may just find the key to what is making you ill.
Fair point, but what I'm trying to say is that I woudn't walk down a busy motorway, but there's always a chance that I'll get knocked down in Tesco car park. Taking away the most risky options still leaves risk, and a real risk at that, but everyone has a level of risk that they are comfortable with. Apart from the guys sitting in their homes with tinfoil hats on.
If you are getting into the realms of what is most likely to kill you, then you would also have to factor in the exercise benefit of cycling v the sedentary method of travelling by bus, the risk of catching a communicable disease on an aeroplane, skin cancer risk of lying on a beach in a hot country etc., etc., etc..
Bottom line is, you make your mind up about the risk relative to your desire to do something. I like Greece as a holiday destination. A colleague liked Tunisia as a holiday destination (in fact she's had her October break cancelled by her travel agent and is going elsewhere). But there are lots of other places to go on holiday - many places I've not been that may be even nicer. It's 2 weeks break in the year to recharge my batteries. Where it is isn't all that important, so yes, I'm probably less likely to go somewhere where there is a percieved terrorist risk and more likely to go somewhere where I will feel safer. I'm still getting my holiday, so I'm not altering my behaviour, just choosing a different option.
In saying that, I'd probably avoid Athens at the moment, as there may be political unrest for a few months, but the Greek Islands are probably as safe as most other destinations.
I'd normally avoid the tube in London anyway - too dark and smelly and claustrophobic. In saying that, it's been about 8 years since I was last there.......