BACKGROUND: Although increasing emphasis is being placed on strategies for successful aging, few studies have examined the relationship between lifestyle factors and mortality and other health outcomes in the old-old population. OBJECTIVE: To examine the impact of physical activity, dietary habits, smoking, and alcohol consumption on 3-year mortality and other health outcomes. METHODS: 2,032 Chinese subjects aged 70 years and older (mean age 80 years) were recruited territorywide by proportional random sampling and followed for 3 years.
Pre-term infants born four months before term have a very low birth weight; in an evolutionary sense, they were never 'meant' to survive through the evolutionary period preceding the technological age. In the same way, evolution failed to contemplate survival to ages 50, 60, 70 and beyond. Because peak reproductive performance comes before the vagaries of a given individual's survival is determined, and the fact of that survival conveys no advantage to disseminating the genetic make-up, natural selection cannot select for advantages related to longevity.
OBJECTIVES: To investigate the psychosocial impact of lipodystrophy on the lifestyles of HIV positive patients on highly active antiretroviral therapy (HAART). METHODS: In-depth interviews were conducted with 14 HIV positive patients on HAART at an outpatient sexually transmitted infections (STI) and HIV clinic in central London. Qualitative data from interview transcripts were analysed using grounded theory to elicit key categories and subcategories.
Inadequate levels of essential nutrients is a most important factor in environmental health, leading to an almost monotonic increase in the incidence, morbidity, mortality, and associated costs of 'diseases of affluence' that has persisted for circa a century.
Our knowledge is far from complete regarding the relationship between vegetarian diets and human health. However, scientific advances in the last decades have considerably changed the role that vegetarian diets may play in human nutrition. Components of a healthy vegetarian diet include a variety of vegetables, fruits, whole grain cereals, legumes and nuts. Numerous studies show important and quantifiable benefits of the different components of vegetarian diets, namely the reduction of risk for many chronic diseases and the increase in longevity.