Montana Native American’s DNA Reveals Oldest Lineage Found on The Continent, Testing Company Says.

In addition to building fitness, regular endurance exercises like running, swimming, or biking can preserve existing brain cells. They can also encourage new brain cell growth. Not only is exercise good for your body, it can also help improve memory, increase focus, and sharpen your mind.

Shaheen Lakhan, MD, PhD, is an award-winning physician-scientist and clinical development specialist. Conventional wisdom has long suggested that we cannot grow new brain cells; that we are born with all of the brain cells we will ever have and that once those gray cells expire, they’re gone for good.

Summary: When adult brain cells are injured, they revert to an embryonic state, say researchers. In their newly adopted immature state, the cells become capable of re-growing new connections that, under the right conditions, can help to restore lost function.

Summary: Scientists once thought that neurons, or possibly heart cells, were the oldest cells in the body. Now, researchers have discovered that the mouse brain, liver and pancreas contain populations of cells and proteins with extremely long lifespans — some as old as neurons.

An October 2012 genetic study published in Science Magazine found that the Khoisan in southern Africa are the oldest ethnic group of modern humans, with their ancestral line originating about 100,000 years ago.

Mitochondrial Eve

Generally, three or four generations span one hundred years, but in rare instances only two, in others five. The average span between one generation and the next is about 25 to 30 years. So, over 350 years, the researcher can estimate that there will be about 12 generations.