For birds, siblinghood can be a matter of life or death
Some birds kill their siblings soon after hatching. Other birds spend their whole lives with their siblings and will even risk their lives to help each other.
Science
Mammograms should start at age 40, new guidelines recommend
A rise in breast cancer among younger women prompted the U.S. Preventive Task Force to issue new screening guidelines. They recommend mammograms every other year, starting at age 40.
How do you counter misinformation? Critical thinking is step one
An economic perspective on misinformation
Scientists restore brain cells impaired by a rare genetic disorder
A therapy that restores brain cells impaired by a rare genetic disorder may offer a strategy for treating conditions like autism, epilepsy, and schizophrenia.
Elevator or stairs? Your choice could boost longevity, study finds
A new study shows people who are in the habit of climbing stairs are less likely to die from heart disease compared to those who don't. Stair climbers also had a slight boost in longevity.
Got brothers or sisters? Warm sibling bonds help boost happiness as you age
Researchers have found that a warm, close bond with a sibling in early adult life is predictive of good emotional health later in life, with less loneliness, anxiety and depression.
As bird flu spreads in cows, here are 4 big questions scientists are trying to answer
Health officials say there's very little risk to humans from the bird flu outbreak among dairy cattle, but there's still much they don't know. Here are four questions scientists are trying to answer.
Biden administration abandons plan to ban menthol cigarettes, citing 'feedback'
An anti-smoking advocate says the decision to leave menthol cigarettes on the market "prioritizes politics over lives, especially Black lives."
Helping women get better sleep by calming the relentless 'to-do lists' in their heads
A recent survey found that Americans' sleep patterns have been getting worse. Adult women under 50 are among the most sleep-deprived demographics.
Animals get stressed during eclipses. But not for the reason you think
After studying various species earlier this month, some scientists now say they understand the origin of animal behavior during solar eclipses.