DHA Boosts Elder Brain Function
Researchers from Tianjin Medical University, in Tianjin, China, have discovered that regularly taking docosahexaenoic acid (DHA) improves brain function in older adults with mild cognitive impairment. A total of 219 adults over the age of 65 participated in the randomized, double-blind, 12-month trial. Half of the subjects were given two grams of DHA daily, while the others received a placebo.
The researchers measured cognitive function, including a full-scale intelligence quotient (IQ) test and two IQ subtests which serve as indicators of both short and long-term memory. The tests were administered after six months and again after 12 months. The DHA group showed a 10 percent higher IQ than the placebo group. There were also significant increases in both IQ subtests and brain hippocampus volume in the DHA group. Decreased hippocampus volume is a primary indicator of Alzheimer’s disease.