Wearing glasses may really mean you’re smarter, according to a major study published in the journal Nature Communications. The study,the largest of its kind ever conducted, has found that needing to wear glasses is associated with higher levels of intelligence.
In the study, researchers from the University of Edinburgh analyzed cognitive and genetic data from over 300,000 people aged between 16 and 102 (all of European ancestry) that had been gathered by the UK Biobank and the Charge and Cogent consortia.
Their analysis found “significant genetic overlap between general cognitive function, reaction time, and many health variables including eyesight, hypertension, and longevity”.
“This study, the largest genetic study of cognitive function, has identified many genetic differences that contribute to the heritability of thinking skills,” says genetic statistician Gail Davies from the University of Edinburgh in the UK.
Specifically, people who were more intelligent were almost 30% more likely to have genes which might indicate they’d need to wear glasses.
While old stereotypes about glasses wearers being smarter are based upon the unsupported assumption that geeky types require optical assistance after straining their eyes through excessive reading, the new data suggests there isn’t such a simple case of cause and effect.Follow @gorkhapost
Excess use of social media may lead to depression and loneliness
Excessive use of social media like Facebook, Snapchat or Instagram could lead to depression and loneliness as this habit is associated with poor well-being,researchers have warned.
A new study, being published in the Journal of Social and Clinical Psychology by researchers at the University of Pennsylvania, showed that limiting screen time on these apps could boost one’s wellness.
The study has tried to look into the causal side of things, and see whether people may actually feel better when they cut down on social media.
“Our findings strongly suggest that limiting social media use to approximately 30 minutes per day may lead to significant improvement in well-being,” the authors concluded.
“When you are not busy getting sucked into clickbait social media, you are actually spending more time on things that are more likely to make you feel better about your life,” said Melissa Hunt, associate director of clinical training at the University of Pennsylvania in the US.
For the study, researchers from the varsity, included 143 undergraduate participants. The team designed their experiment to include the three platforms most popular with the participants.
They monitored the students for a week to get a baseline reading of their social media use, and gave them questionnaires that assessed their well-being according to seven different factors: social support, fear of missing out (aka FOMO), loneliness, autonomy and self-acceptance (a measure of psychological well-being), anxiety, depression, and self-esteem.
They collected objective usage data automatically tracked by iPhones for active apps, not those running in the background, and asked respondents to complete a survey to determine mood and well-being.
“Using less social media than you normally would leads to significant decreases in both depression and loneliness. These effects are particularly pronounced for folks who were more depressed when they came into the study,” Hunt told Science Daily.
The researchers chose to limit social media, rather than have subjects stop using it altogether, because it was a more realistic option, she noted.