Not only that, but if you were having a light day but used a super tampon, designed for heavy flow, then its quite painful and not good for your body when you remove it as it hasn't absorbed enough. Also, if you were to use a super and your period was light, then you'd be inclined to maybe forget to change it when you should and if you leave it for too long you can be prone to Toxic Shock Syndrome which can kill, and if you use a towel, its just not hygenic to leave it for too long. Hope that helps.