Staying healthy is the key to keeping yourself alive. Video game characters know this all too well. When your red heart gauge reaches zero... you die. For non-bitmap humans like you this is more of a challenge. But luckily after extensive study at ThinkGeek labs we've determined that people feel best when they are in close proximity to something that they adore. Don't understand? Well luckily for you we've created this amazing 8-Bit Dynamic Life Shirt to illustrate. Buy one of these glowing shirts for yourself, and gift one to your significant other (boyfriend, girlfriend, husband, fembot 2000...). During your normal activities two and a half pixelated hearts will light up on your shirt. Hey... you're depressed and in need of a recharge. But get within hugging distance of your significant other wearing the matching shirt and suddenly the hearts on both of your shirts start to light up until you're fully powered up. Go too far astray from the source of your affections and you'll drop back down to two and a half hearts again. Got it?

FONTE: http://www.thinkgeek.com/tshirts/illuminated/a090/