"Reductionism!" is a charge often flung at geneticists, from accusers in the popular press and also, not infrequently, from many fellow scientists. What is it that leads so many people to so fundamentally misunderstand what genetics is about?

It has been prescribed by the NHS for depression since 2004 but recently mindfulness has spawned a whole industry of evening classes and smartphone apps. What is the evidence that the practice - part meditation, part CBT - works?

In the last two decades, dozens of scientific papers have been published on the biological origins of homosexuality - another announcement was made last week. It's becoming scientific orthodoxy. But how does it fit with Darwin's theory of evolution?

Looks aren't everything but love, it would seem, is far from blind. Across cultures and sexes, some features hold greater appeal. "More symmetrical faces do seem to be rated more attractive," says Tamsin Saxton, a senior lecturer at Northumbria University and part of the evolution, perception and behaviour research group. "The theory goes that your genes provide a template for symmetrical bodies, symmetrical face. [When] there's some sort of problem - you get ill or you encounter some problem with the environment - that can sometimes throw the symmetry off a little bit," she says. "So it might be that if you are picking a symmetric partner then you are actually picking somebody whose genes are fairly well suited to the environment around you."