motivation

4 Stories

Exercise DVDs May Actually Be Psychologically Harmful

New study finds 1 in 7 statements are negative

(Newser) - Exercise DVDs are a mostly unregulated industry, and their safety and accuracy haven't been scientifically proven—yet their promises of chiseled, bronzed bodies have us forking over $250 million for them every year. Not only do we not know whether they work, researchers at Oregon State University are going... More »

Chronic Pot Smokers Have Different Brains

It remains unclear if marijuana causes the difference

(Newser) - A new study out of the University of Texas' Center for BrainHealth and the Mind Research Network is showing brain differences in regular pot users—differences that have already been reported in lab mice. The study, published in PNAS , found that 48 "chronic" users who smoked at least four... More »

Potheads Really Are Slackers, Says Science

Their brains have less of motivational chemical dopamine: study

(Newser) - Smoke a lot of marijuana for a long period, and your brain may end up making less of a chemical that helps you stay motivated, scientists say. They researched 19 regular pot smokers and 19 non-smokers of matched age and sex, scanning subjects' brains to see how chemicals were distributed,... More »

Pot Linked to Slacking Off at Work

Not-so-surprising research links pot to low motivation on the job

(Newser) - Here's a finding that seems to be a waste of research money: Smoking marijuana is linked to decreased motivation at work. But scientists aren't sure if the pot is to blame, or if people who tend to toke are a tad too chill to begin with—or so... More »

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