Movement
Walking, training, strength, fitness and sitting: what moving the body does, and how much it takes.
Four kinds of movement, two directions
A pooled analysis of 74 studies and 4,227,297 adults split physical activity by where it happens. Leisure-time activity sat alongside a 24 percent lower risk of dementia. Physical work sat alongside a 20 percent higher one. The certainty of that evidence, the authors say, is very low to low.
The exercise and depression result is weaker than the headlines said
A Cochrane review of 73 trials was reported as showing exercise rivals therapy. Read the trials it rests on and the picture is thinner, and the review says so itself.
A chair, a cone, and seven years of death records
Taiwan measured 13,423 adults aged 65 and over on seven simple fitness tests, then followed them through the national death registry for a median of seven years. The fittest fifth died at a rate 61 percent below the least fit. What the study cannot say is whether getting fitter is what makes the difference.
