Study
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Health
Feeling Terrible After Your Covid Shot? Then It’s Probably Working.
Fever, chills and fatigue may all be signs of vigorous antibody production, a new study finds.
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Politics
New Evidence That Ancient Footprints Push Back Human Arrival in North America
Following up a on study in 2021 of tracks found in New Mexico, researchers used more methods to bolster the claim that the tracks are up to 23,000 years old.
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Politics
Same-Sex Behavior Evolved in Many Mammals to Reduce Conflict, Study Suggests
But the researchers cautioned that the work could not shed much light on sexual orientation in humans.
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Health
Blood of Young Mice Extends Life in the Old
Infusions of youthful blood led older mice to live 6 to 9 percent longer, a new study found.
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World
A 23-Month Pregnancy? Scientists See Hints in Bowhead Whales.
Confirming the finding would give the species the longest period of gestation known in mammals, although more research is needed.
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Politics
Stanford President Will Resign After Report Found Flaws in His Research
Marc Tessier-Lavigne was cleared of accusations of scientific fraud and misconduct. But the review said his work had “multiple problems” and “fell below customary standards of scientific rigor.”
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Health
New Treatment Could Help Fix the Heart’s ‘Forgotten Valve’
Patients with leaking tricuspid valves in a research trial saw improvements with a procedure that does not require a risky open-heart surgery.
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Health
Premature Births Fell During Some Covid Lockdowns, Study Finds
Nearly 50,000 preterm births may have been averted across a group of mostly high-income countries in one month alone.
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Health
Helping Stroke Patients Regain Movement in their Hands
Heather Rendulic was 23 when she suffered a stroke that disabled her left side. Ten years later, her left arm and hand remain so impaired that she cannot tie her shoes, type with two hands or cut her own food. But for an extraordinary month, while ...
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Politics
Bears May Rub Against Trees for Protection From Parasites
In experiments, scientists found that ticks avoid the tar of beech trees, which bears seem to have an affinity toward.