4,000 steps a day may slow memory loss, aging expert says

Maintaining cognitive function throughout aging may be significantly boosted by a daily walking routine, according to research led by Coral Sanfeliu, head of the Neurodegeneration and Aging Group at the Barcelona Institute for Biomedical Research.

Sanfeliu's work suggests that approximately 4,000 steps per day can help mitigate the decline in memory and other cognitive responses often associated with aging. This research challenges the notion that mental deterioration is an inevitable part of getting older. Scientific advancements have increasingly shown that brain plasticity allows individuals to continue learning throughout their lives, and that age-related changes in brain function are not necessarily negative.

"In these two decades, we have experienced an explosion of knowledge in the molecular and functional structure of the brain and how it evolves throughout life," Sanfeliu explained in an exclusive interview. She attributes this progress to new technologies in molecular analysis and neuroimaging, which enable detailed study of neuronal activity in both healthy and diseased states.

Sanfeliu also addressed persistent myths about the brain. The idea that humans only use 10% of their brain capacity is a misconception, as all areas of the brain are interconnected and function constantly. Similarly, the belief in a dominant left or right hemisphere for logical or creative thinking, respectively, has been disproven. Modern studies confirm that both hemispheres work together, and there are no significant anatomical or functional differences between male and female brains.