Sleep may even help memory in very young babies |  | (Reuters Health) - Three-month-old infants have better recall when they get a brief nap after learning something new, according to small experiment that suggests sleep may play a role in solidifying memories very early in life. | |  | Vaccine lessens severity of whooping cough infections |  | (Reuters Health) - Even though vaccinations don't always prevent whooping cough, people have milder symptoms of the respiratory illness and lower odds of serious complications with the vaccine than without it, a U.S. study suggests. | |  | |  |  | |  |  | Related Video | |  | |  | |  |  |  |  |  | A quick-fix on the day's news delivered when you want it. Register Today |  | |  |  |  | A daily digest of breaking business news, coverage of the US economy, major corporate news and the financial markets. Register Today |  | |  | » » MORE NEWSLETTERS |  | |