Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Babies cry at night to prevent siblings, scientist suggests
Babies who demand to be breastfed in the night might be delaying the birth of a sibling, scientist proposes.
- Genetics
Neandertal, modern human DNA deviates even more
An analysis of genetic material of Neandertals and modern humans shows genetic differences in the species' population sizes and even the curves of their spines.
- Environment
Lead levels in ancient Rome’s water were high, but not toxic
Ancient Romans probably drank tap water with up to 100 times more lead than the levels found in local spring water.
- Neuroscience
Bingeing rats show the power of food habits
Rats allowed to binge on sweetened milk show a bad habit for food. But while food might change our habits, a bad food habit may not necessarily be an addiction.
-
- Health & Medicine
Unsolved drugs
Long thought to launch precision attacks against bacteria, antibiotics may also cause lethal collateral damage, according to a controversial theory. Exploring how these compounds kill may reveal new ways to fight antibiotic resistance.
- Health & Medicine
Gene variant, processed meat linked to boost in cancer risk
In people with a specific variation of a gene on chromosome 10, eating processed meat is associated with an increased risk of developing colon cancer.
- Neuroscience
Poor slumber is bad for young flies’ brains
A child's sleep deprivation could alter brain development and adult behavior, a study of fruit flies suggests.
- Life
Protein that gets sperm into egg identified
The protein Folr4 on a reproductive egg plays this crucial role in the fusion of the sperm and egg, research shows.
- Neuroscience
Even with rest, brain changes linked to football linger
The offseason may not allow enough time for football players' brains to heal from hard hits.
- Genetics
Gene activity sets humans apart from extinct hominids
Differences in gene activity caused by DNA methylation distinguish modern people from Neandertals and Denisovans.
- Genetics
Down’s syndrome goes beyond chromosome 21
A genetic analysis suggests that the DNA changes linked to Down's syndrome happen on all chromosomes, not just the 21st.
