Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal kingdom—function permanently without it. This may be relevant in future ...

Brain games can help boost focus, concentration, and memory. They may also help slow age-related cognitive decline, even if they can’t prevent it. Choose games that increase in difficulty and variety ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...