mortality risk

We’ve written about the importance of physical activity in maintaining health (for example here) at various times in the past. Most of the studies of activity have relied on people’s own reporting of what types of activity they typically perform, and conversely how much time they spend being inactive (TV watching, or computer working, for example). A new study just published in the Annals of Internal Medicine, however, takes much of the guesswork out of such research because the participants wore accelerometers. These devices tabulated activity counts over 1-minute periods, thus...

womenFor many years Body Mass Index, or BMI, has been the go-to index for establishing trends in population weights, and has also been used to establish what are the best BMIs to avoid certain ailments such as diabetes as well as early death. It has been widely accepted that the relationship of BMI and risk of death, or mortality, is J- or U-shaped. That is, the risk of death is lowest at an intermediate value of BMI not at the lowest BMI seen in healthy adults. For years, experts have widely accepted that this ideal BMI value is similar for men and for women, and for all adults. A...