The first one was a 20 year long study of 260 subjects which showed that those who ate baked or broiled fish once a week had a significant reduction in the risk of cognitive decline, as compared to non fish eaters.  The study showed that the fish eaters had an improvement in their brain volume in areas responsible for learning and memory.  It is important to note that about 65% of brain chemistry of composed of fat.  Those on statin drugs may potentially have the negative effect of memory decline if on a long-standing high dose.  Those with the larger brain volumes had a lower incidence of Alzeimer's Dementia, according to the study.  (Source: Annual meeting of the Radiologic Society of North America).  So, please indulge in mercury-free wild caught baked or broiled fish regularly to help prevent cognitive decline.

The second was a 12 week study, which included 700 patients on statin drugs with high cardiovascular risk, and showed that there was a 20% reduction in triglycerides in patients taking 4 grams of pure fish oil ( EPA), in addition to other favorable lipid changes.  (Source: Annual Scientic SEssions of the American Heart Association) 

This study is not exactly shocking to the medical community.  The first study to show this effect was the JELIS study.  The Japan EPA Lipid Intervention Study followed almost 19,000 people with elevated cholesterol over approximately 5 years. One group was given statin therapy (prescription medication to lower cholesterol), the other statin plus 1800 milligrams of EPA a day. The EPA group had a statistically significant decrease in major coronary events, including non-fatal events. A follow-up study on secondary prevention showed a significant decrease in major coronary events in patients with pre-existing coronary heart disease who took 1800 milligrams EPA in addition to statins. ( Yokoyama, M, Origasa, H, Matsuzaki, M, et al. Effects of eicosapentaenoic acid on major coronary events in hypercholesterolaemic patients (JELIS): a randomised open-label, blinded endpoint analysis. Japan EPA lipid intervention study (JELIS) Investigators. Lancet. 2007;369(9567):1090-8.)