A new study examined the effects of marijuana use of 1,003 adults aged 22 to 36 from the Human Connectome Project collected between August 2012 and 2015 and found that 63% of heavy lifetime cannabis users exhibited reduced brain activity during a working memory task, while 68% of recent users also demonstrated a similar impact.
While off-label uses of medication may be controversial in political media, in science and health they lead to important gains. A new example is the cardiac disease drug digoxin used at a low and safe dosage for one week for nine patients with metastatic breast cancer.
An analysis of 300 million United Kingdom Ministry of Transport test records, which tries to estimate the ‘health’ of every vehicle on UK roads between 2005 and 2022 and determine potential vehicle longevity (basically survival rates for different powertrains) has concluded that electric vehicles now match the lifespans of conventional counterparts and may even be more reliable.
When people see labels or menus listing the calories in their food, it doesn't change their consumption in any way beyond what experts call "statistical wobble." About two fewer almonds worth of calories per meal. But two almonds over time can add up to a lot.

That's the conclusion in the data of a systematic review by The Cochrane Collaboration. The team of academics reviewed 25 papers which discussed the impact of calorie labeling on consumption and found a minute reduction in the foods selected - about 11 calories.
"Long Covid", the lingering effects of the COVID-19 pandemic that erupted in Wuhan, China in 2019 and spread worldwide, causing millions of deaths, is difficult to pin down.

Pediatricians report it affects on average 0.5% of children who got the disease caused by the SARS-CoV-2 coronavirus that caused COVID-19. It has a few names, like Post-Acute Sequelae of SARS-CoV-2, but Long Covid is the common term, and is generally characterized as persistence of COVID-19 symptoms 12 weeks or more weeks after the disease. 
Science is always looking for new ways to protect plants and the environment. In Hawaii, for example, when their staple papaya was under attack by aphids that transferred the "papaya ringspot virus" to plants, legacy breeding and pesticides did not work. A gene gun sending in a GMO did.(1) In the Wall Street Journal, I discussed how a non-corporate, free modification by academics could save the American Chestnut from the natural blight that had devastated billions of trees.(2)
With Burns Night this weekend,  Scotland will celebrate its heritage. In the First Among Equals country to the south that controls them, Scottish accents used to mean trouble. Now, it is the sound of safety for both English men and women.

A new study finds that the English, even some Welsh and Scottish, associate a "working-class" accent with criminal behavior. In a jury trial, that could have serious ramifications, but it likely also matters before that. Arrests and voice identification, for example. You're more likely to be one of The Usual Suspects(1) if your accent is criminal.
Doctors who would never tell a patient to smoke cigarettes in moderation, they are a legitimate class 1 carcinogen, oddly say just that about an identical class 1 carcinogen, alcohol, and as recreational marijuana has become legal they have given it the same umbrella.

Legal or not, marijuana is a drug just like alcohol, and it includes the toxic smoke of cigarettes.

I am not a social authoritarian progressive so I won't tell you how to behave just because my health insurance premiums went up so 50,000,000 others could get it cheaper, but you absolutely should not be smoking marijuana around kids. It ain't the 1980s, hippie.

Have you purchased organic food and wondered what the chemical is that you need to wash off?

Those are alkaline wax-based coatings, designed to preserve food so it looks nice longer. Just like conventional growers use. But chemical wax coatings made including olive bud oil don't prevent fungi and bacteria common in organic food, and a new program would like to change that.
Soybeans greatly benefit from nitrogen-fixing bacteria, which reduces the need for fertilizer, and a new study shows that gene-edited bacteria can supply the equivalent of 35 pounds of nitrogen from the air during early corn growth as well. 

Agricultural scientists tested products from Pivot Bio called PROVEN and PROVEN 40, which includes one and two species of soil bacteria, respectively, that turn atmospheric nitrogen into plant-available forms. An edited gene involved in nitrogen fixation makes more of it available so more of it at planting means the bacteria colonize plant roots.