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.

In a mouse study, a single stressful event led to long-lasting structural changes in the brain, specifically with astrocytes and neurons, causing impaired communication between cells.

People with the gene variant ApoE4, which is linked to a higher risk of Alzheimer's disease, saw a 30% reduction in developing it if they have another gene, klotho, which is associated with longevity.