The U.S. has the highest rates of sexually transmitted disease cases in the industrialized world, say health trackers, with chlamydia, gonorrhea and syphilis reaching 2.3 million cases in 2017.
The consumer advocacy group Public Citizen also says the multicenter study of life-threatening sepsis will at best produce confusing results. A Harvard doctor and designer of the research disagrees.
Many social sciences experiments couldn't be reproduced in a new study, thus calling into question their findings. The field of social science is pushing hard to improve its scientific rigor.
The human brain isn't just bigger than a mouse brain. It contains at least one kind of brain cell that isn't found in rodents.
The spread of air conditioning may have kept some people from dying in this summer's extreme heat. But studies project more heat-related illnesses as the climate warms.
Genomic sequencing reveals new evidence of interbreeding among different groups of our ancient relatives. A scientist calls the find "almost too lucky to be true."
Self-driving cars may be the future of transportation. But if they are going to share the road with humans, they have to learn how people behave behind the wheel.