I started watching the show when I was 13 myself. I have been hooked on the characters, romances, and surgery ever since. I think the show is great and, whilst it is fairly 'out there' at times, with story lines like shootings and plane crashes (although they make the show as great as it is), there are positive messages to take from each episode of the show. The monologues at the start and end of each episode are something which I always find to have a good message behind, and truly inspirational at times. The show also got me interested in surgery, and after a lot of looking, surgery is now the career I would like to pursue. I would also say that the characters are very relatable: although not always suitable for younger viewers, I can see bits of myself in each and every character on the show and I think the interaction between the characters is often fairly realistic. Overall, I would say that due to the romance, drinking, sex etc. the show should not be viewed by anyone under 13, however, I think any teenagers over the age of 13 would really enjoy the show and take some really positive messages out of it.