Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: It’s become cliche for various ...

Have you ever noticed that simply imagining something positive happening in the future can instantly brighten your mood? Thinking about an upcoming vacation or an event you’re really excited about?

Training people to activate a part of the brain linked to reward and positive expectations may be associated with an increase in the body's immune response to a vaccine. The findings from a study ...