The `Country Strong` star used to adhere to a strict macrobiotic diet but has eased the self-imposed controls on her lifestyle in the past few years and while she now professes a love for Guinness, Gwyneth doesn`t worry about suffering any ill effects from alcohol as she claims to have the perfect solution to a heavy night. Speaking about sometimes overindulging in alcohol, she said: "It`s true. I admit it! But I have a great hangover cure. I take a cold shower in the morning and then I go into the sauna and drink a lot of water throughout the day. Green tea also helps!" Gwyneth - who runs lifestyle website Goop - admitted her uptight reputation does bother her and hopes her guest starring role in `Glee` as fun loving substitute teacher Holly Holliday will show people a different side to her. The 38-year-old actress - who is married to Coldplay frontman Chris Martin - explained to this week`s Closer magazine: "The biggest misconception about me is that I`m uptight and I don`t know why that exists, but I hope if people watch `Glee` that maybe they▓ll develop a different impression of me."