from the world's big
Studying voice recordings of infected but asymptomatic people reveals potential indicators of Covid-19.
Vaccines find more success in development than any other kind of drug, but have been relatively neglected in recent decades.
Vaccines are more likely to get through clinical trials than any other type of drug — but have been given relatively little pharmaceutical industry support during the last two decades, according to a new study by MIT scholars.
Researchers at University College London link waist circumference with dementia.
- Researchers at University College London have discovered a link between waist circumference and dementia.
- Seventy-four percent of volunteers that developed dementia were overweight or obese.
- Women with central obesity had a 39 percent greater risk of dementia.
Mediterranean Diet Has Huge Health Benefits, New Study Finds | The New York Times<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="f003c82b77eb38381dedb83ebf2e802a"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/_JiKXdZwiIg?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>Co-author Andrew Steptoe, a professor of psychology and epidemiology at the university, <a href="https://www.cnn.com/2020/06/23/health/belly-fat-dementia-link-wellness/index.html" target="_blank">sums up</a> the team's work:</p><p style="margin-left: 20px;">"Dementia is one of the major health challenges of the 21st century that could threaten successful aging of the population. Our findings suggest that rising obesity rates will compound the issue."</p><p>Dr. Dorina Cadar, a senior fellow at UCL and corresponding author of the study, suggests monitoring both BMI and WC status. Her suggestions include following a Mediterranean diet, reducing alcohol consumption, and regular exercise. </p><p>Dr. Richard Isaacson, the director of the Alzheimer's Prevention Clinic at Weill Cornell Medical College, <a href="https://www.cnn.com/2020/06/23/health/belly-fat-dementia-link-wellness/index.html" target="_blank">says</a> that brain health and waist size are linked, especially for women.</p><p style="margin-left: 20px;">"Based on emerging data from studies like this, we are now able to clarify sex differences in dementia risk. Combining these findings with my clinical experience, I have seen greater impact on visceral fat on memory function in women, likely mediated by metabolic pathways."</p><p>This is another in a long list of studies linking obesity to cognitive problems, and serves as a reminder as to why <a href="https://bigthink.com/21st-century-spirituality/does-lack-of-exercise-lead-to-dementia" target="_self">exercise</a> and <a href="https://bigthink.com/mind-brain/intermittent-fasting" target="_self">nutrition</a> remain your best defense against dementia. Regardless of the conveniences of modern society, human beings evolved during times of scarcity. We're not built for excess. Our brains pay the price when we indulge. </p><p><span></span>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
In Chile, the so-called "release certificate" would free holders from all types of quarantine or restriction.
Weeks into lockdown and with economic indicators signalling a deep global recession, governments around the world are searching for ways to get their countries back up and running.
Image: Statista<h3>Premature release?</h3><p>But the idea has proved contentious, with the <a href="https://www.who.int/news-room/commentaries/detail/immunity-passports-in-the-context-of-covid-19" target="_blank">World Health Organization (WHO) among those voicing criticism</a>. The root of the concern for many is the unknown degree to which past infection confers future immunity. Until it is understood whether or not people can be reinfected with the disease, and how long any immunity lasts for, the move may be premature.</p><p>In Chile's case, the certificate will <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)31096-5/fulltext" target="_blank">expire three months after a confirmed infected person</a> has recovered. After this point, they will be considered to have the same risk of infection as anyone else. The government hopes the certificates will encourage diagnosed individuals to report results to the health ministry.</p><p>The WHO also raises questions about the validity of results from some of the tests on the market, which it says are not sufficiently sensitive or accurate.</p><p>False positives could lead people to think that they are safe from future infection, despite never having had the disease. False negatives would also mean infected people might fail to self-isolate. Advice from the WHO is that immunity certificates may in fact risk continued transmission of the virus, and lead to people ignoring public health advice.</p>
Image: Statista<p>This could be a particular cause for concern given a number of recent studies have demonstrated that a <a href="https://www.vox.com/2020/5/16/21259492/covid-antibodies-spain-serology-study-coronavirus-immunity#" target="_blank">comparatively small population has been infected so far</a>, leaving the vast majority still vulnerable. Many countries are also bowing under the weight of the amount of testing required.</p><h3>Placing a value on recovery</h3><p>Some experts think enforcing two-tier restrictions on who can and cannot socialize or go to work also raises legal and practical concerns, and that it could have the adverse effect of incentivizing people to seek out infection to avoid being excluded.</p><p>And as such existing inequalities could worsen. Not least the economic divide, potentially exaggerated by some being excluded from work when others aren't.</p>
We will travel again, but it will not be the same.
COVID-19 has upended global travel and brought the world to a standstill.