I can go out to party, get up the next day and win the race… Last year my friends used to say to me 'Hey, do you want to go out for a drink or come to dinner?' and I said no because I had training. I think I only went out three times in the whole year because I was too focused, it was an extreme situation. This season, however, there has been a transition for me. Now I make sure to go out with them and do the training as well. I have achieved a balance and this year has been incredible, the most successful of my career ”, Lewis Hamilton, Mercedes driver and 2015 Formula 1 champion, in an interview with BBC Radio.