If you ever wondered why your favorite Hollywood stars look so healthy even though they won't shut up about how much they love junk food and not working out? Well, now that biological marvel has been revealed in this article from The Daily Mail. Is it there rigorous fitness regimen? Is it there strong willpower? Um, no:

Adderall:
When Lindsay Lohan was arrested on suspicion of drink-driving, police said they found cocaine in her pocket. Paris Hilton recently admitted to U.S. talk show host Larry King that she takes Adderall for attention deficit disorder. Both drugs are often used by women looking to lose weight. Hollywood's party girls always seem to have access to certain drugs known to help shed pounds. At the moment, Adderall is the latest diet drug craze in Hollywood, and the number of celebrities addicted to it continues to rise.

Smoking:
Grey's Anatomy star Katherine Heigl looks to have lost a stone in the last year. She may be following a healthy eating plan, but she appears to have a secret weapon - she smokes constantly...Nowadays she is rarely photographed without a cigarette in her mouth, and when she isn't smoking, she is clutching a pack.

Fasting:
Paris Hilton caused a stir when she walked into New York restaurant Nobu recently. When a waiter asked the heiress for her order, he was quietly told: "Mineral water." In fact, over the course of her two-hour "meal", Paris took sips of water and Red Bull - she didn't eat a single bite...Then there's the master cleanse, otherwise known as the lemonade diet: water mixed with maple syrup, lemon juice and cayenne pepper. Beyonce admitted following it for two weeks to drop one-and-a-half stone for the film Dreamgirls, and Jared Leto used it to shed the two stone he'd gained to play Mark Chapman in the film Chapter 27.

Laxatives:
Today, many actresses are taking laxatives in the form of "dieter's tea", which has a mild laxative effect. Some starlets are drinking up to ten cups a day. Trainer Gelband says: "The latest trend among models is mixing laxative tea with the master cleanse diet. All they drink is master cleanse and laxative tea."

There's really no one mentioned in this article who I care if they live or die, so my empathy for all these idiots is like a ten year old girl at Neverland Ranch. It's not really being bothered.