The Alzheimer's Association global Conference that happened this week provided an opportunity to dementia researchers across the globe to come and discuss the findings of their research papers. The conference that happened in Washington, D. C., heard some positive news.

One of the studies has unveiled that a therapy has proved to be quite beneficial. It is an aerobic exercise that is cost-effective and free from side effects. The study involving elderly with mild cognitive impairment has found that regular intensive aerobic exercise was able to reduce the tau protein's quantity found in regular intensive aerobic exercise.

In comparison to a program of stretching, the aerobic program was found to have improved blood flow in regions of the brain involved in memory and reason. The program also improved attention, planning and organizing skills.

Another study also involved elderly with cognitive impairment. Researchers of this study stated that an aerobic exercise program brought improvements in memory skills, selective attention and brain's ability to work properly.

The third study involving patients having mild to moderate Alzheimer's disease have shown that two to three rigorous aerobic conditioning classes per week for 16 weeks brought significant improvements in mental speed and attention.

Laura Baker, an Alzheimer's researcher at Wake Forest Baptist Medical Center in North Carolina, stated that these effects cannot be provided by any currently approved medications. Experts have affirmed that regular exercise could play an important role in protecting brain from cognitive impairment.