London, Apr 1 : By stopping the face from frowning, Botox jabs, which smooth out facial lines by partially freezing muscles, make patients feel happier, a new study suggests.

The treatment has been used by many celebrities including Queen of Pop.

Now, after studying 25 people, psychologists have found that Botox anti-wrinkle treatment can help beat the blues.

In the volunteer group, 12 had Botox injections to the forehead, while the rest had fillers, peals or cosmetic treatments.

All the participants completed a mood questionnaire at least two weeks later, reports The Telegraph.

Melbourne, Apr 1 : Watching your team lose can be more than heart breaking, it can be fatal, especially for die-hard fans, warns a new study.

"The emotional stress of loss and/or the intensity of a game played in a high profile rivalry such as the Super Bowl can trigger total and cardiovascular deaths," ABC Online quoted Dr Robert Kloner, a professor of medicine at the University of Southern California, as saying.

"In contrast, a win in a lower intensity game may actually have a favourable effect on mortality,” he added.

Washington, Apr 1 : Adults who suffer chronic sleep problems are more likely to show suicidal tendencies than those without any insomnia complaints, a new study has found.

In the study, researchers found that the more types of sleep disturbances people had, the more likely they were to have thoughts of killing themselves, engage in planning a suicidal act or make a suicide attempt.

Washington, Apr 1 : A potential new HIV drug may one day treat patients who are not responding to Anti-Retroviral Therapy, suggests a new study.

Researchers, from Imperial College London, the National Cancer Institute, Bethesda, and Innsbruck Medical University, said when they used a molecule called D-1mT alongside Anti-Retroviral Therapy (ART) to treat monkeys they were able to reduce the levels of the simian form of HIV, known as SIV, in the blood.

Washington, Apr 1 (ANI): A new study has shown that babies born to women who suffered from anxiety or depression prior to pregnancy are likely to sleep poorly at both 6 months and 12 months of age.

The researchers found that preconceptional psychological distress was a strong predictor of infant night waking, irrespective of effects of postnatal depression, bedroom sharing and other confounding factors.

A significant psychological distress prior to conception puts infant at 23-percent increased risk of infant night wakings at 6 months of age and a 22-percent increased risk at 12 months of age.

Washington, April 1 : Those on diet better avoid buffets, for a new study has shown that people tend to underestimate how much of each item is present when faced with a large variety of items.

Joseph P. Redden of the University of Minnesota and Stephen J. Hoch of the University of Pennsylvania came to this conclusion after studying consumers'' perceptions of quantity in a set of experiments.

Their aim was to determine how quantity perceptions influence portion sizes.

"Does a bowl with both red and blue candies seem to have more or less than a bowl with only one colour candy?" the researchers asked.