Exercise is healthy. That is common knowledge. But just how rigorous should that exercise be in order to really impact a person’s fitness level? And, if you sit all day at a desk, but still manage to get out and exercise, does that negate your six, seven, or eight hours of sedentary behavior? 

These were the sort of questions Matthew Nayor and his team at Boston University School of Medicine set out to answer in the largest study to date aimed at understanding the relationship between regular physical activity and a person’s physical fitness. 

If a group of astrologers all write papers endorsing astrology and then another astrologer comes along and does a meta-analysis of those, they can conclude authoritatively that astrology works. As a smart reader, you know it's nonsense, but if you are selling astrology services, you either set out to deceive people or you want to believe so badly you lose your ability to reason. 
A new analysis finds that if there ever was a "Beepocalypse", it hasn't been during this century.

Using data since 1961, they found that the number of managed honey bee colonies has risen by 85%. Managed colonies are the only way to create reasonable estimates, that is how surveys of losses are done annually, but in the past activists trying to create a new fundraising target leveraged blips in averages to claim that a Colony Collapse Disorder was being caused by...farmers.

The rapid development of effective mRNA vaccines for COVID-19 has led some observers to suggest that mRNA will push other types of vaccines out of the market completely in the near future. But is that desirable? Is it even possible?

When you collide particles made up of quarks and gluons, such as the protons accelerated by the Large Hadron Collider at CERN, you mostly expect particles made of quarks and gluons to emerge. That is because quarks and gluons most of the times interact by the strong interaction, which is itself mediated by the exchange of gluons; and the strong interaction knows nothing about all the other matter and interaction fields.
So how do you get energetic electrons, muons, photons, and weak bosons from a LHC collision? Well, the electroweak interaction which may produce these particles does play in, but its contribution is, er, weaker, by definition. 

Gimme all 'em leptons!
As we are hopefully exiting the third coronavirus pandemic of the last 17 years, it is time to consider that it might become an annual event, like the flu. Since it mutates, there could also be an annual vaccine, but if flu is any indication half of people won't take it.

What if there are more passive ways of preventing transmission? 

Fear and frustration hang over London, Ont., where many people are discussing four formal allegations of sexual violence reported to Western University and sharing unconfirmed rumours about wider sexual assaults. Members of the Western community say they feel unsafe, especially young women and other vulnerable groups.

In response to the situation, students organized a walkout rally on Sept. 17 to stand with survivors and demand change.

Imagine I mention that a small group of people not only distrust science and technology despite thorough testing by government scientists, they don’t trust it because it was tested by the government.

A consulting firm that charges you to tell you how to cut your emissions is now claiming that properties which don't spend a lot of money will plummet in value in the near future.

So if you own commercial property, you have been warned.
The coconut is the sixth most cultivated fruit on earth and thanks to fads around things like coconut oil and water, demand continues to rise.

Growing products that rich people want is great for developing nations but they face challenges. Trees grow slowly and natural plagues Lethal Yellowing Disease put existing ones at risk. The answer may be what made bananas the staple they are now: cloning.

"Coconut plants do not form side shoots. They put all their energy into one shoot that has to grow as fast and as tall as possible. This makes it very difficult to clone and store the plants," said Bart Panis of KU Leuven.

Image courtesy of Hannes Wilms at KU Leuven