Testosterone Injections Help Male Birds Sing Better, Woo Mate
The discovery that injecting testosterone in areas of the male canary's brain affects its ability to attract a mate through singing could help explain the effects of human steroid use on sexual behavior, according to researchers at Johns Hopkins University.
New Study Maps Where in the Body Feelings are Experienced
Researchers from Aalto University in Finland have pieced together a map of where in the body emotions are experienced.
Alzheimer's Tied to High Levels of Bad Cholesterol
Healthy levels of "good" and "bad" cholesterol aren't only important for staving off heart disease, but may also help prevent Alzheimer's by keeping a person's levels of amyloid plaque, a key marker of the disease, low, according to a new study led by researchers from the University of California, Davis.
Sex Not Discussed Enough in Teens' Doctor Visits
Teens today, whether through media, friends or some other means, are constantly being exposed to sex. Missing from the conversation, however, is an important voice: doctors.
Majority of Vitamin Supplements Studies Flawed, Researcher Says
The majority of large, clinical trials of vitamin supplements suffer from flawed methodology and should not be trusted, according to a new study published in the journal Nutrients.
After Weeks of Delay, Orbital Cargo Launch Announced
After weeks of delay, a resupply mission headed to the International Space Station by the aerospace firm Orbital Sciences Corp. has received the launch date of Jan. 7.
Earth's Unstable Crust 4 billion Years Ago Dripped Down into Mantle
The Earth's mantle was much hotter 4 billion years ago during the Archean eon than it is today, according to a new study that sheds light on how plate tectonics - and thus current continents - came about.
Proposed Rule to Stop Protecting Gray Wolves Sets Dangerous Precedent, Researchers Warn
The Obama administration's proposal to bump the gray wolf off the federal endangered species list could lead to the endangerment of other species, according to researchers who warn that, if passed the way it is currently written, the rule would set a dangerous precedent.
Fructose May Not Deserve Such a Bad Rap After All, Researcher Argues
Fructose's perceived role in the current obesity epidemic may be overblown, a new analysis published in the journal Atherosclerosis suggests.
Facial Recognition Gene Identified
The same gene known to play a role in mother-infant bonding and couple bonding in monogamous species may also be behind a person's ability to remember faces, a new study suggests.
New Understanding of Persistent Bacteria Could Lead to More Effective Antibiotics
Hebrew University researchers say they've discovered the mechanism by which some bacteria are able to withstand antibacterial treatment, arguing that their study could lead to new ways to control the bull-headed pests.
Alcohol Leaves Its Mark on Young Adults Who Drink Regularly
Alcohol consumption leaves its mark on the DNA of young adults who drink regularly on the weekends, a new study published in the journal Alcohol reports.
Adolescent Victims of Sexual Abuse Better Helped by Prolonged Exposure Therapy than Counseling
Adolescent victims of sexual abuse may be better helped by a modified form of prolonged exposure therapy than supportive counseling when it comes to treating PTSD, a new report in the Journal of American Medical Association found.
Let it Snow: Mystery Behind Many Snowfalls' Baffling Persistence Explained
Researchers from Michigan Technological University say they've cracked the code behind many snowfalls' seemingly odds-defying persistence.
Record Space Station Spacewalk Runs into Trouble
International Space Station crew members Oleg Kotov and Sergey Ryazanskiy performed a record 8-hour, 7-minute spacewalk Friday in a failed effort to install a pair of cameras as part of a Canadian commercial project aimed at downlinking images of Earth.