Why only some people become addicted to drugs: Scans of cocaine users reveal the shape of your brain could be to blame

Why only some people become addicted to drugs: Scans of cocaine users reveal brain shape could be to blame Drug users who aren't dependent have an abnormally large frontal lobeThis section of the brain is implicated in self-controlThose who didn't become addicted had a low-boredom threshold By Claire Bates PUBLISHED: 17:06 GMT, 18 January 2013 | UPDATED: 17:09 GMT, 18 January 2013 People who take cocaine over many years without becoming addicted have their brains to thank, a study has found.

Even a brisk daily walk can cut the risk of breast cancer

Even a brisk daily walk can cut the risk of breast cancer Women who exercised for at least 90 minutes a day saw the most benefit with a 30 per cent drop in their breast cancer risk | UPDATED: 13:01 GMT, 25 June 2012 Women saw a reduction in their breast cancer risk no matter how intense the exercise.

Drinking, smoking or being overweight "does not harm men"s fertility"

Drinking, smoking or being overweight 'does not harm men's fertility' Men with unhealthy lifestyles 'likely to be just as fertile' as those living more sensibly | UPDATED: 23:42 GMT, 12 June 2012 NHS guidelines say GPs are supposed to warn men diagnosed with infertility of the dangers of alcohol, tobacco and recreational drugs It's the advice every man trying to become a father wants to hear – have a drink and relax.

Cycling could harm male reproductive health by increasing estrogen levels

Feeling hormonal How serious cycling could be playing havoc with male reproductive health | UPDATED: 16:27 GMT, 23 May 2012 Male cycling enthusiasts may have more to worry about than saddle sores and road safety, after a study found the sport can play havoc with their fertility.