New twist in brain obesity riddle

Obesity 'caused before birth'
A high-fat diet in pregnancy may cause changes in the foetal brain that cause over-eating and obesity, research suggests.

Vitamin 'may be Alzheimer's aid'
Vitamin B3 may help protect the brain from Alzheimer's disease - and even boost memory in healthy people.

Tennis call 'brain bias' found
Tennis line judges are more likely to make mistakes when they call balls "out" rather than "in", say researchers.

Speed of eating 'key to obesity'
Wolfing down meals may be enough to nearly double the risk of being overweight, Japanese research suggests.

Job choice 'affects Alzheimer's'
A good education and a mentally demanding job may help protect the brain against Alzheimer's disease, research suggests.