ºFrancisco tiene 40 años, pero durante casi 20 fumó muchísimo, lo que generó varios cambios en su sistema respiratorio tanto que desde hace un año que dejó el cigarrillo tiene una tos permanente y dificultad para respirar. El mes pasado decidió ir al médico para ver qué sucedía. Después de muchos exámenes, los médicos le diagnosticaron cáncer de pulmón y le dijeron que se debía a que algunas células de sus pulmones se estaban dividiendo de una manera diferente a la habitual e incontrolable. Entonces me pregunté: ¿por qué sucede esto?

this website is for anybody really not just for girls just saying, also while a lot of males are mean and you know there are the few who are kind and then there's the nice-guys but then theirs also guys like me who are shy we don't get out much because there are people like you who exist who would most likely punch a guy in the face so next time just think about things before you post them to a website where guys and girls can see your question.

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )