Because some diseases can cause genetic and hereditary mutations, meaning it can pass through generations.
you get issues, like hepatitus C
An issue is an issue when it becomes an issue.
Ten-issues as in the things you wear on your feet.Tennis shoe (ten-issue)It's a tongue twister, you see. Ten issues, Ten-is shoes? Get it?
Hormones, they are what make us behave the way we do. Also there are neuro transmitters in the brain that keep our mood, for example if drugs are taken, then there are more mood swings as they...