Category Archives: Health
Transportation: “How Covid-19 Is Changing Everyday Commuting”
Traveling on trains and buses means potential exposure to the coronavirus, so cities are racing to make their public transit systems safe. WSJ explores how things like sanitizing robots, working from home and expanded bike lanes are changing our commutes. Video/Illustration: Jaden Urbi and Zoë Soriano.
Coronavirus Update: State Of The Pandemic After Six Months (Nature Podcast)
We take a look back over the past six months of the pandemic, and discuss how far the world has come. It’s been a period of turmoil and science has faced an unprecedented challenge. What lessons can be learned from the epidemic so far to continue the fight in the months to come?
Also in this episode:
12:55 Unanswered questions
After months of intensive research, much is known about the new coronavirus – but many important questions remain unanswered. We look at the knowledge gaps researchers are trying to fill.
Nature Medicine: Real-time tracking of self-reported symptoms to predict potential COVID-19
20:36 How has lockdown affected fieldwork?
The inability to travel during lockdown has seriously hampered many researchers’ ability to gather fieldwork data. We hear from three whose work has been affected, and what this means for their projects.
Diet Studies: Benefits Of “Time-Restricted Eating” (TRE) Improve With Greater Time Restriction
From iScience / Cell.com (June 26, 2020):
…the beneficial effects of TRE are dose dependent, with greater reductions in body weight, fat mass, and improvement in glucose tolerance when a 9-h protocol was implemented versus 12 and 15 h. The optimal TRE time frame to recommend for people has not been tested. Clear improvements have been noted after 6-, 8-, 9-, and 10-h protocols. It is likely that the greater time restriction would result in greater weight losses, which may maximize the metabolic benefits.
Eating out of phase with daily circadian rhythms induces metabolic desynchrony in peripheral metabolic organs and may increase chronic disease risk. Time-restricted eating (TRE) is a dietary approach that consolidates all calorie intake to 6- to 10-h periods during the active phase of the day, without necessarily altering diet quality and quantity.
TRE reduces body weight, improves glucose tolerance, protects from hepatosteatosis, increases metabolic flexibility, reduces atherogenic lipids and blood pressure, and improves gut function and cardiometabolic health in preclinical studies. This review discusses the importance of meal timing on the circadian system, the metabolic health benefits of TRE in preclinical models and humans, the possible mechanisms of action, the challenges we face in implementing TRE in humans, and the possible consequences of delaying initiation of TRE.
Infographic: “Advanced Prostate Cancer” In The U.S. Is Rising (2020)
Top Daily News Podcast: Economic Recovery, Covid-19 Surge & Virtual Democratic Convention
The consensus among economists is that the U.S. recovery will most likely be something in between a V and a W — a sharp drop, a relatively small bounce back, and then a long period of slow growth.
- Time to pay attention again: The coronavirus surge is real, and it’s everywhere in the United States.
- And Axios co-founder Mike Allen tells us what to expect at the virtual Democratic National Convention in Milwaukee.
Guests: Axios’ Felix Salmon, Sam Baker, and Mike Allen.
Post-Covid Cities: “Fear In An Elevator” (CityLab)
As offices and businesses around the world slowly begin to reopen, the spotlight turns to one of the most traditionally uninteresting forms of transportation: the elevator. Modern cities are intrinsically reliant on these vertical transports which, in light of the global pandemic, can carry new risk factors.
World Health: “Covid-19 – The Second Wave” (Video)
The world now faces the threat of a second wave of coronavirus outbreaks. Zanny Minton Beddoes, The Economist’s editor-in-chief, and Slavea Chankova, our health-care correspondent, answer your questions.
Health: “Understanding Arthritis” – Orthopaedic Trauma Institute (Video)
Covid-19: “Superspreading Events” Responsible For Up To 80% Of Infections
From Scientific American (June 23, 2020):
In fact, research on actual cases, as well as models of the pandemic, indicate that between 10 and 20 percent of infected people are responsible for 80 percent of the coronavirus’s spread.
Researchers have identified several factors that make it easier for superspreading to happen. Some of them are environmental.
- Poorly ventilated indoor areas seem especially conducive to the virus’s spread – A preliminary analysis of 110 COVID-19 cases in Japan found that the odds of transmitting the pathogen in a closed environment was more than 18 times greater than in an open-air space.
- Places where large numbers of people congregate – As a group’s size increases, so does the risk of transmitting the virus to a wider cluster. A large group size also increases the chance that someone present will be infectious.
- The longer a group stays in contact, the greater the likelihood that the virus will spread among them – The benchmark used for risk assessment in her contact-tracing work is 10 minutes of contact with an infectious person, though the CDC uses 15 minutes as a guideline.
- Some activities seem to make it easier to spread respiratory gunk – Speech emits more particles than normal breathing. And emissions also increase as people speak louder. Singing emits even more particles, which may partially explain the superspreader event at the Washington State choir practice. Breathing hard during exercise might also help the spread of COVID-19.
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