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
Sudden cardiac arrests are more likely to happen on any day at any time : Study
A new study has showed that sudden cardiac arrests are more likely to happen on any day at any time, challenging previous claims that weekday mornings — especially Mondays — were the danger zones.
Previously heart experts have long believed that weekday mornings were the danger zones for unexpected deaths from sudden cardiac arrests.
“While there are likely several reasons to explain why more cardiac arrests happen outside of previously identified peak times, stress is likely a major factor,” said Sumeet Chugh, a Professor of medicine from the Smidt Heart Institute in the US.
“We now live in a fast-paced, ‘always on’ era that causes increased psycho-social stress and possibly an increase in the likelihood of sudden cardiac arrest,” Chugh added.
Almost 17 million cardiac deaths occur annually worldwide while the survival rate from sudden cardiac arrest is less than one per cent.
For the study, published in the journal Heart Rhythm, Chugh’s team analysed data on 1,535 from the community-based Oregon Sudden Unexpected Death Study between 2004 to 2014, among which only 13.9 per cent died in the early morning hours, the findings revealed.
All reported cases were based on emergency medical service reports containing detailed information regarding the cause of the cardiac arrest.
“Because sudden cardiac arrest is usually fatal, we have to prevent it before it strikes,” Chugh said. “Our next steps are to conclusively determine the underlying reasons behind this shift, then identify public health implications as a result,” he added.
Apart from stress, other contributing factors may be a shift in how high-risk patients are being treated, as well as inadequacies in how past studies have measured time of death caused by sudden cardiac arrest.Follow @gorkhapost