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The American Physical Therapy Association is urging parents and caregivers to ensure that babies get enough "tummy time" throughout the day while they are awake and supervised, in light of a recent survey of therapists who say they've noticed an increase in motor delays in infants who spend too much time on their backs while awake.

University of Manchester scientists have uncovered the 3-D structure of Mps1 -- a protein that regulates the number of chromosomes during cell division and thus has an essential role in the prevention of cancer -- which will lead to the design of safer and more effective therapies.

The traffic light ahead of you is turning yellow. Do you gun the engine and speed through the intersection, trusting that others will wait for their green, or do you slow down and wait your turn? Researchers contend that our ancient instincts don't meet the decision-making needs of a modern world.

Children who are given antibiotics in their first three months often wheeze at 15 months of age. However, this wheezing is probably more due to the presence of chest infections than to the use of antibiotics.

Unique biochemical crosstalk that enables a fetus to get nutrition and oxygen from its mother's blood just may cause common postpartum blues, researchers say.

Screening the entire human genome, scientists have identified several hundred genes that impact West Nile virus infection.

Overall alcohol use -- particularly consumption of beer -- is declining in the US, according to a new study. Researchers examined 50 years of data and found several changes in alcohol intake but no change in alcohol use disorders. Americans are drinking significantly less beer and more wine, while hard liquor use has remained fairly constant. More people now report that they are nondrinkers.

Chemicals in household cleaning products linked to risk of asthma in young children. This finding may explain why excessive hygiene is linked to increased asthma and allergies.

Digital cameras have transformed the world of photography. Now new technology inspired by the human eye could push the photographic image farther forward by producing improved images with a wider field of view. By combining stretchable optoelectronics and biologically inspired design, scientists have created a remarkable imaging device, with a layout based on the human eye.

Abstinence can mean different things to adolescents than to adults. That's one reason why abstinence-only programs do not have strong effects in preventing teenage sexual activity, according to new research.