Exercise Meaningful in Having Good Mental Health

In this cross-sectional study, we analysed data from 1 237 194 people aged 18 years or older in the USA from the 2011, 2013, and 2015 Centers for Disease Control and Prevention Behavioral Risk Factors Surveillance System survey. We compared the number of days of bad self-reported mental health between individuals who exercised and those who did not, using an exact non-parametric matching procedure to balance the two groups in terms of age, race, gender, marital status, income, education l...

 Studies on Secular Parenting

The results of such secular child-rearing are encouraging. Studies have found that secular teenagers are far less likely to care what the “cool kids” think, or express a need to fit in with them, than their religious peers. When these teens mature into “godless” adults, they exhibit less racism than their religious counterparts, according to a 2010 Duke University study. Many psychological studies show that secular grownups tend to be less vengeful, less nationalistic, less militarist...

 High Rates of Return on College Education Comes with High...

Attending college has been considered one of the most protable investments, annualized returns ranging from 8% to 13% (Card 1999). I utilize a simple approach, as in Mehra and Prescott (1985), to quantify how much of the excess return to college is explained by its risk. I also explore the role played by heterogeneous ability by developing a life-cycle model with endogenous enrollment and analyzing the dropout risk effect on college returns. Under the risk premium approach, the permanent inc...

 Benefits of a Secular Upbringing

Recent research also has shown that children raised without religion tend to remain irreligious as they grow older — and are perhaps more accepting. Secular adults are more likely to understand and accept the science concerning global warming, and to support women's equality and gay rights. One telling fact from the criminology field: Atheists were almost absent from our prison population as of the late 1990s, comprising less than half of 1% of those behind bars, according to Federal Bureau...

 Different Cells are Replaced at Different Rates

Different types of cells have different lifespans, e.g.:  we shed our skin cells about every 35 days red blood cells live about 120 days, platelets 6 days and white cells less than a day most of the adult skeleton is replaced about every 10 years the average age of a fat cell seems to be about 10 years a 25-year-old heart replaces about 1% of all its cardiomyocytes (heart muscle cells ) over the course of a year, while a 75-year-old heart replaces about half a percent ...

 The Effects of Aging and How Exercise Counteracts Them

• Motor neurons die, particularly from age 60 onward. This causes connections between muscle fibers to wither — and that, in turn, eventually leads to loss and shrinking of muscle fibers. As a result, muscles get smaller and a person gets weaker, says Sandra Hunter, an associate professor of exercise science at Marquette University in Milwaukee. "Physical activity can offset some of that," she says. "But there is this biological aging process going on — the neurons will die regardle...

 Latinos Less Likely to Be Online Than Whites

While about two-thirds of Latino (65%) and black (66%) adults went online in 2010, more than three-fourths (77%) of white adults did so. In terms of broadband use at home, there is a large gap between Latinos (45%) and whites (65%), and the rate among blacks (52%) is somewhat higher than that of Latinos. Fully 85% of whites owned a cell phone in 2010, compared with 76% of Latinos and 79% of blacks. Hispanics, on average, have lower levels of education and earn less than whites. Controlling f...