Depression may be better predicted and understood now that researchers have discovered that young adults who previously experienced the mental illness have hyper-connected emotional and cognitive networks in the brain.
Therese O'Sullivan and a team from Edith Cowan Univ. found that eating higher amounts of cheese, milk, yogurt or butter does not make a person more likely to die from cardiovascular disease, cancer or any other cause.
About 400 million years ago a group of fish began exploring land and evolved into tetrapods– today's amphibians, reptiles, birds and mammals. Now, researchers have turned to a living fish, called Polypterus, to help show what might have happened when fish first attempted to walk out of the water.
The world’s fastest sprinters have unique gait features that account for their ability to achieve fast speeds, according to two new studies. The new findings indicate that the secret to elite sprinting speeds lies in the distinct limb dynamics sprinters use to elevate ground forces upon foot-ground impact.
A diet of junk food not only makes rats fat, but also reduces their appetite for novel foods, a preference that normally drives them to seek a balanced diet, reports a study. The study helps explain how excessive consumption of junk food can change behavior, weaken self-control and lead to overeating and obesity.
Ebola is a rare, but deadly disease that exists as five strains, none of which have approved therapies. One of the most lethal strains is the Sudan ebolavirus (SUDV). Now, researchers are reporting a possible therapy that could someday help treat patients infected with SUDV.
New evidence puts into doubt the long-standing belief that a deficiency in serotonin— a chemical messenger in the brain— plays a central role in depression. Scientists are reporting that mice lacking the ability to make serotonin in their brains did not show depression-like symptoms.
Researchers have found that century-old museum specimens hold clues to how global climate change will affect a common insect pest that can weaken and kill trees– and the news is not good.
An expedition to Mount Everest by Italian researchers has shown for the first time that blood pressure monitored over a 24-hour period rises progressively as people climb to higher altitudes. The researchers also found that a drug used for lowering blood pressure, called telmisartan, was effective in counteracting the effects of altitude up to 3,400 meters.
An unusual new fossil discovery of one of the earliest animals on Earth may also provide the oldest evidence of muscle tissue– the bundles of cells that make movement in animals possible.
Learning a new skill is easier when it is related to an ability we already have. Scientists have discovered a fundamental constraint in the brain that may explain why this happens. They found, for the first time, that there are limitations on how adaptable the brain is during learning and that these restrictions are a key determinant for whether a new skill will be easy or difficult to learn.
A new study from neuroscientists reveals the brain circuit that controls how memories become linked with positive or negative emotions. Furthermore, the researchers found that they could reverse the emotional association of specific memories by manipulating brain cells with optogenetics— a technique that uses light to control neuron activity.
By combining plasmonics and optical microresonators, researchers have created a new optical amplifier design, paving the way for power-on-a-chip applications.
Federal regulators are seeking public comment on smokeless tobacco maker Swedish Match's request to certify its General-branded tobacco products as less harmful than cigarettes. It is the first time the FDA has accepted a modified risk tobacco product application, a move that's being closely watched by both the public health community and tobacco companies.
A Southern California food company has recalled nearly 93,000 pounds of fully cooked chicken Caesar salad kits sold nationwide over concerns of possible listeria contamination.