Science guru and media personality Dr Karl is best known for his "Ask Dr Karl" segment on Triple J, where people call in to ask tricky science questions. So we decided to see how he would go answering our questions about life.
Like, how do you make friends as an adult when you move to another city?
What's the best cure for a hangover?
And how do you get over your fear of commitment?
And what's more important, sleep or sex?
And for all those science questions you still need answers for, he's just released a new book, called Short Back & Science.