New surveys find that older adults who play video games report higher levels of emotional well-being.

Scholars asked 140 people aged 63 and older how often they played video games, if at all. The participants then took a series of psychological assessment tests to determine their emotional and social well-being. 61 percent of study participants played video games at least occasionally, with 35 percent of participants saying they played at least once per week.

The survey found that participants who played video games, including those who only played occasionally, reported higher levels of well-being. Those who did not play video games reported that they felt more negative emotions and had a tendency toward feeling higher levels of depression.

The timber industry, including pulp and paper producers, are among Canada's most important industries  - but they are also one of the largest producers of wastewater and greenhouse gas emissions in wastewater is a concern. 

Until now, greenhouse gas emission estimates have been limited by the mathematical models used to predict them. Researchers have recently developed a new dynamic method to better predict the emission content of these gases.   

A new paper says that flocks of birds, schools of fish, and groups of any other living organisms might have a mathematical function in common - body sizes are distributed according to the same mathematical expression, where the only unknown is the average size of the species in an ecosystem. 

Doctors have used drugs to induce general anesthesia in patients undergoing surgery since a medical doctor became a legitimate profession in the mid-1800s.  But little has been known about how these drugs create such a profound loss of consciousness. We don't understand why aspirin works either, but it does.  Yet the search for answers about the brain is ongoing. 

When a marathon runner approaches the finish line of race but suddenly collapses, it's reasonable to assume it is because of a muscle issue. It might also be a braking mechanism in the brain which swings into effect and makes us people tired to continue. What may be occurring is what is referred to as 'central fatigue'.

A survey analysis finds both that the public is supportive of government action to curb obesity, diabetes, and other noncommunicable diseases - but don't like interventions that appear intrusive or coercive.

The Harvard School of Public Health (HSPH) analysis also found that support was higher for interventions that help people make more healthful choices, such as menu labeling requirements, than for interventions that penalize certain choices or health conditions, such as charging higher insurance premiums for obese individuals.