Vale (mesmo) a pena ler: alguém decidiu acompanhar os concorrentes de determinada temporada do The Biggest Loser, e os resultados de tal estudo são surpreendentes. Sim, sim, o universo estudado é muito pequeno. Mas, como se realça ao longo do artigo, é demonstrativo para situações de perda de peso rápida através de dieta e exercício. E parece que se encontram resultados semelhantes noutros estudos. Engraçado. Embora não tenha piada nenhuma.
É ler tudinho, e cada um que retire as suas conclusões. Mas talvez fosse importante para quem tenta, tenta, tenta despistar quilos e acaba com o mesmo peso, ou mais ainda, e muita culpa em cima dos ombros. E, se calhar ainda mais, para quem aponta o dedo aos "falhados" dos gordos, essa gente sem auto-controlo, auto-estima, motivação. Eu sou das semi-sortudas cujo "peso sem esforço" - ou melhor, quase sem esforço - ainda a situa abaixo do índice odioso da não menos odiosa (e infundada, e demasiado genérica, e completamente não substanciada) tabela de IMC. E depois há os outros. Que merecem melhor que o que a sociedade lhes reserva hoje. Não, fechar a boca e "queimar" não é solução. Espantoso, hein.
"Most people who have tried to lose weight know how hard it is to keep the weight off, but many blame themselves when the pounds come back. But what obesity research has consistently shown is that dieters are at the mercy of their own bodies, which muster hormones and an altered metabolic rate to pull them back to their old weights, whether that is hundreds of pounds more or that extra 10 or 15 that many people are trying to keep off.
There is always a weight a person’s body maintains without any effort. And while it is not known why that weight can change over the years — it may be an effect of aging — at any point, there is a weight that is easy to maintain, and that is the weight the body fights to defend. Finding a way to thwart these mechanisms is the goal scientists are striving for. First, though, they are trying to understand them in greater detail."
"Slower metabolisms were not the only reason the contestants regained weight, though. They constantly battled hunger, cravings and binges. The investigators found at least one reason: plummeting levels of leptin. The contestants started out with normal levels of leptin. By the season’s finale, they had almost no leptin at all, which would have made them ravenous all the time. As their weight returned, their leptin levels drifted up again, but only to about half of what they had been when the season began, the researchers found, thus helping to explain their urges to eat."
"Dr. Lee Kaplan, an obesity researcher at Harvard, says the brain sets the number of calories we consume, and it can be easy for people to miss that how much they eat matters less than the fact that their bodies want to hold on to more of those calories."
"But Dr. Ludwig said that simply cutting calories was not the answer. “There are no doubt exceptional individuals who can ignore primal biological signals and maintain weight loss for the long term by restricting calories,” he said, but he added that “for most people, the combination of incessant hunger and slowing metabolism is a recipe for weight regain — explaining why so few individuals can maintain weight loss for more than a few months.”
Dr. Rosenbaum agreed. “The difficulty in keeping weight off reflects biology, not a pathological lack of willpower affecting two-thirds of the U.S.A.,” he said."