Reply to comment by sgramstrup in Depression can lead to memory dysfunction. This study may pave way for new drugs. Results of a large study involving brain scans show that patients with moderate to severe depression have 7-10 per cent fewer serotonin 4 receptors in the brain than healthy test subjects. by Wagamaga

Reply to Vitamin D deficiency linked to premature death. Over a 14-year follow up period, researchers found that the risk for death significantly decreased with increased vitamin D concentrations, with the strongest effects seen among those with severe deficiencies. by Wagamaga