About 25% of lifespan is determined by genetics, but we don't know all the genes associated with longevity yet. Studying the fruit fly genome has led to the identification of more longevity genes.

In rats who had strokes, brain damage was restored by reprogramming human skin cells to become nerve cells to be transplanted in the brain, which restored movement and feeling.

Rather than constantly using blood to check glucose, saliva is a non-invasive way to monitor diabetes; it's easy to collect and store, requires less handling than blood and is environmentally efficient.

In mice, a mutation on the gene KCND2 led to improved cognitive flexibility, which is the ability to adapt to different situations. The gene codes for a protein that controls neural signaling.