Adult Physical Activity Keeps Immune System Young

It is widely accepted that aging is accompanied by remodelling of the immune system including thymic atrophy and increased frequency of senescent T cells, leading to immune compromise. However, physical activity, which influences immunity but declines dramatically with age, is not considered in this literature. We assessed immune profiles in 125 adults (55–79 years) who had maintained a high level of physical activity (cycling) for much of their adult lives, 75 age-matched older adults and ...

 Running In Elderly Promotes Walking-Economy of Youth

Older runners had a 7–10% better walking economy than older walkers over the range of speeds tested (p = .016) and had walking economy similar to young sedentary adults over a similar range of speeds (p = .237). We found no substantial biomechanical differences between older walkers and runners. In contrast to older runners, older walkers had similar walking economy as older sedentary adults (p = .461) and ~26% worse walking economy than young adults (p<.0001).

 Generational Replacement Behind Growth of Secularims

One important factor behind the growth of the religiously unaffiliated is generational replacement, the gradual supplanting of older generations by newer ones. Among the youngest Millennials (those ages 18-22, who were minors in 2007 and thus not eligible to be interviewed in Pew Research Center surveys conducted that year), fully one-third (34%) are religiously unaffiliated, compared with about one-in-ten members of the Silent Generation (9%) and one-in-twenty members of the World War II-era...

 Looking at babies attentively makes us treat them differe...

Until very recently doctors didn't use analgesia when they operated on small babies, because they thought their minds were too primitive to really feel pain or to remember it if they did. This is a dramatic example, but it often seems as if we discount children's pain compared with adult pain. Child abuse isn't evil because it may produce neurotic adults but because it abuses children. Divorce doesn't have a cost because it may produce adults who have difficulty with relationships but because...

 Self Control in Children is Predictive of Success as an A...

"Children who had the greatest self-control in primary school and preschool ages were most likely to have fewer health problems when they reached their 30s," says Terrie Moffitt, a professor of psychology at Duke University and King's College London. Moffitt and a team of researchers studied a group of 1,000 people born in New Zealand in 1972 and 1973, tracking them from birth to age 32. The new study, published in the Proceedings of the National Academy of Sciences, is the best evidence yet...