| 1 | The study says alcohol is the most harmful drug overall and 3 times as harmful as cocaine and tobacco, while ecstasy and LSD are among the least damaging. | |
| 2 | Women with high IQs are far more likely to take cannabis, cocaine and ecstasy in their thirties, a study has found. | |
| 3 | Men with high IQ scores were 50 per cent more likely to have used amphetamines, ecstasy, and several illicit drugs than those with low scores - so the link was not as strong as amongst women. |