Letting data protection get in the way of linking health data stymies research into vaccination and patient care, and is ultimately unethical, argues Norwegian public health chief.
The risk of dying from cancer is more than 2.5 times higher in patients with low vitamin D levels compared to patients who have high levels of the same vitamin.
Overweight women have a 60 per cent higher risk of chronic lower back pain. If the general population gets heavier, this will cause an increase in disabilities.
For forty years the number of serious tears of tissue among women giving birth was on the rise in Norway. Now the occurrence of these injuries is declining due to preventive measures.
Almost 16,000 Norwegian men have been monitored over more than four decades to study life expectancy and its links to smoking, blood pressure and obesity.
Norwegian farmed salmon is still a good source of long-chain omega-3 fatty acids, even though these fish are now fed more vegetable oils than previously.
