that's why national wildlife federation created the be out there movement. kids moving indoors causes a host of problems, from obesity to adhd. but outdoor play can go a long way to improving kid's health, body, mind and spirit. it helps them stay fit, enhances creativity and attention spans and could even make them better students. do your part. be a part of be out there. there's a reason why they call it the great outdoors. learn more at be out there dot org. [kids shouting] be out there! we all should know. here's this week's report. >> little miss muffet had it right. when that spider sat down beside her, she ran away. and while many of us would do exactly what little miss muffet did, for the most part, spiders are harmless, right? >> in the u.s., the vast majority of spiders are not dangerous to humans. >> so if we're bitten by a harmless spider, do we need to apply first aid? >> yes, wash that spider bite with soap and water two or three times a day until it heals. also, you can apply a cold compress, which is basically just an ice pack. just make sure