Our ability to live a long life is influenced by a combination of our genes and our environment. In studies that involve identical twins, scientists have estimated that no more than 30% of this influence comes from our genes, meaning that the largest group of factors that control how long a person lives is their environment.
Throughout history, couples have gone to extraordinary lengths to choose the sex of their child. In the middle ages, women believed they could swing the odds of having a son by asking their husbands to turn their faces eastwards during sex. Others disagreed – husbands should be seduced over a cocktail prepared with red wine and fresh rabbit’s womb.
The estimated annual health care costs related to obesity are over $210 billion, or nearly 21 percent of annual medical spending in the United States. Americans spend $60 billion on weight loss products each year, trying everything from expensive meal replacement products to do-it-yourself programs on the latest cell phone apps. We gather weight loss advice, voluntarily or involuntarily, from news outlets, social media and just about everyone.
The role of microorganisms in childhood diarrhoea has been greatly underestimated, with pathogens including bacteria, viruses and parasites, responsible for almost twice as many cases as previously thought, research has revealed.