Alcohol and nicotine use have long been known to go hand in hand but other than a commonality in reckless behavior, the reasons why have been speculation.  

Previous surveys have shown that more than 85 percent of U.S. adults who are alcoholics also smoke cigarettes. Now, researchers from the University of Missouri School of Medicine have found that nicotine cancels out the sleep-inducing effects of alcohol, which they believe sheds light on the reason alcohol and nicotine usage are so closely linked.

During the most recent study, rats were fitted with sleep-recording electrodes and given alcohol and nicotine. The researchers found that nicotine acts via the basal forebrain to suppress the sleep-inducing effects of alcohol.

Even anger is sexist, says a new psychology paper. 

A new paper focused on jury deliberation behaviors found a distinct gender bias when it comes to expressing anger and influencing people. The study found that men use anger to influence others, but women actually lose influence when they allow anger into an argument. 

Warning: Stereotypes may be harmful to patients' health.

A national study led by a USC researcher found people who encountered the threat of being judged by negative stereotypes related to weight, age, race, gender, or social class in health care settings reported adverse effects. The researchers found those people were more likely to have hypertension, to be depressed, and to rate their own health more poorly. They were also more distrustful of their doctors, felt dissatisfied with their care, and were less likely to use highly accessible preventive care, including the flu vaccine.

Psychology has not kept pace with science because symptom-based diagnosis stopped being used 50 years ago in medicine yet psychologists still rely on it. As evidence,the Diagnostic and Statistical Manual of Mental Disorders (DSM) has become 'The Bible' of psychiatry because it diagnoses depression when patients tick off a certain number of symptoms on the DSM checklist.
But the National Institutes of Mental Health no longer use it as anything more than a glossary because of controversy and maneuvering (e.g. a desire to get more and more disorders covered by insurance), 

A study of brain imaging reveals how neural responses to different types of music really affect the emotion regulation of persons - especially in men, who process negative feelings with music and react negatively to aggressive and sad music, according to the findings.

Social networking makes it easy to monitor the status and activities of a former romantic partner, an often unhealthy use of social media known as interpersonal electronic surveillance (IES) by about five scholars on the planet who hope the term will catch on.

In the real world it is probably called cyber-stalking when it is not just stalking. There are warning signs it will occur but people often assume the best and ignore those. But after the fact, psychological and relationship factors and how individuals cope with the termination of a romantic relationship can help predict their use of online surveillance, according to a study published in Cyberpsychology, Behavior, and Social Networking.

REM sleep, the phase of night-time mammalian sleep physiology where dreams occur, has long fascinated scientists, clinicians, philosophers, and artists alike, but the identity of the neurons that control REM sleep, and its function in sleep have been controversial due to a lack of precise genetic methods to study the sleeping brain.

A demonstration of a recent brain technology provides the first answers to both questions, identifying a neural circuit in the brain that regulates REM sleep, and showing that REM sleep controls the physiology of the other major sleep phase, called non-REM (NREM) sleep.

Girls from families with a history of breast cancer, or genetic mutations that increase the risk of a breast cancer diagnosis, seem to adjust just as well as other girls when it comes to general anxiety, depression and overall psychosocial adjustment, according to new research from the Perelman School of Medicine at the University of Pennsylvania and the Children's Hospital of Philadelphia. However, the study also found that girls from at-risk families tend to worry more about breast cancer, particularly when their mothers have the same worries. 

People who have social power are strongly influenced by internal body cues stemming from their motor system when making judgments about preferences of paintings, objects, movements or letter sequences, according to a new paper in the Journal of Experimental Psychology: General which looked at how the easiness of high power individuals' motor actions impacted their judgments.

The likelihood of a transgender person attempting suicide is very high and a new study examined factors that may prevent them. Its conclusions also inform medical and mental health professionals who work with transgender clients. 

For a survey of "suicide protective factors" among transgender adults, the scholars recruited 133 transgender individuals living in Canada, ranging in age from 18 to 75, who responded to questions through an online, anonymous survey about their thoughts on and attempts at suicide. Nearly 45 percent of respondents said they had had a suicide plan at least once in their lives; 26 percent indicated they had attempted suicide at least once. The majority of the study participants indicated they experienced suicidal thoughts.