Why does my back and neck hurt so bad when I sit on bleachers.
It is not ergonomically correct, meaning you haven't got the right support for your body when sitting in bleachers.
because you are not at home on your lazy boy sofa or with a neck rester or anything to lean your back against.
because you might be puting a strain on it if you sit in an uncomfortable position.
The bleachers are probably hard and uncomfortable. Try sitting up straight and tall, maybe that will help
Your back has no support, that's why. Bleachers have no back rest.Also, when you sit on a bleacher or any other object without a back rest, you're more prone to lean forward which can also cause your back and neck to hurt.