Health & Medicine
- Health & Medicine
50 years ago, scientists claimed marijuana threatened teens’ mental health
In the 1970s, scientists linked pot use to mental health woes in teens. Such concerns have helped keep the drug illegal for teens for 50 years.
- Health & Medicine
Here’s what we know about B.1.1.7, the U.S.’s dominant coronavirus strain
Studies show the variant is more contagious and may cause more severe COVID-19 overall. But vaccines still work against B.1.1.7.
- Health & Medicine
People with rare blood clots after a COVID-19 jab share an uncommon immune response
AstraZeneca’s and J&J’s shots are linked to antibodies that spark clots. Knowing that lets doctors ID cases and get patients the right treatment.
- Health & Medicine
The P.1 coronavirus variant is twice as transmissible as earlier strains
The variant first found in Brazil can evade some immunity from previous COVID-19 infections, making reinfections a possibility.
- Health & Medicine
U.S. pauses J&J vaccine rollout after 6 people of 6.8 million get rare blood clots
The COVID-19 vaccine’s pause is out of abundance of caution, experts say. The potentially deadly clots appear to be “extremely rare.”
- Health & Medicine
AstraZeneca’s COVID-19 vaccine is tied to uncommon blood clots in rare cases
Blood clots should be listed as a possible side effect of AstraZeneca’s vaccine, but its benefits still outweigh the risks, experts say.
- Materials Science
Microscopic images reveal the science and beauty of face masks
Important insights into the particle-filtering properties of different fabrics also offer a sense of the unseen, textured world of face masks.
- Health & Medicine
4 takeaways from the WHO’s report on the origins of the coronavirus
The leading hypothesis is that the coronavirus spread to people from bats via a yet-to-be-identified animal, but no animals have tested positive so far.
- Health & Medicine
Pfizer says its COVID-19 vaccine has 100 percent efficacy in young people
Vaccinated 12- to 15-year-olds developed higher levels of coronavirus antibodies compared with vaccinated 16- to 25-year-olds from a previous trial.
- Health & Medicine
Frog skin cells turned themselves into living machines
The “xenobots” can swim, navigate tubes, move particles into piles and even heal themselves after injury, a new study reports.
- Health & Medicine
Moderna and Pfizer COVID-19 vaccines may block infection as well as disease
The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.
- Health & Medicine
AstraZeneca’s COVID-19 vaccine holds up in an updated analysis of trial data
The redo dropped the overall efficacy of AstraZeneca’s vaccine from 79 percent to 76 percent. But a slight fluctuation is not unexpected, experts say.
