If you want to enjoy your food, stop taking pictures of it and putting them on the Internet, say marketing scholars.

They mean you, foodies on Instagram and Pinterest. It could be ruining your appetite by making you feel like you've already experienced eating that food.

Marketing experts at Brigham Young and University of Minnesota have concluded that what happens is the over-exposure to food imagery increases people's satiation. Satiation is defined as the drop in enjoyment with repeated consumption. Or, in other words, the fifth bite of cake or the fourth hour of playing a video game are both less enjoyable than the first.

I've often argued that California's biggest industry is hypocrisy - not just talking about freedom and liberalism while banning conduct elites happen not to like this year or reconfiguring voting districts so that there is no political opposition but that we claim to care about the environment.

In reality, our dirty secret, that people either don't know or don't want to know but every policy maker is well aware of, is that garbage has been one of our biggest exports. We tax the public a lot to deal with recycling, and then pay companies a lot to handle recycling, and then those companies ship it to China as garbage.  

Resveratrol, a chemical found in red wine, remains effective at fighting cancer even after the body's metabolism has converted it into other compounds, according to a new paper in Science Translational Medicine.

Resveratrol is metabolized very quickly and it had previously been thought that levels of the extracted chemical drop too quickly to make it usable in clinical trials. The new research shows that the chemical can still be taken into cells after it has been metabolized into resveratrol sulfates. Enzymes within cells are then able to break it down into resveratrol again – meaning that levels of resveratrol in the cells are higher than was previously thought.

It bugs me a little when 'time' is randomly called a dimension in casual talk. Since just after Einstein's relativity, we've been treated to the mathematical idea that time is its own dimension - though Einstein never said that.

Transgendered androphilic males may have been accepted in ancient hunter-gatherer cultures because they were an extra set of hands to support their families, according to a new article in Human Nature.

Nocturnal animals use their noses to stay alive. Mice, among others, depend on their impressive olfactory powers to sniff out food or avoid danger in the dark, using a streamlined system that sends the sensory cue to neural centers in the brain that need only a few synapses to rapidly initiate instinctive fleeing behavior. 

A tuberculosis vaccine developed at McMaster University published phase one clinical study results today.

 Tuberculosis is a serious public health threat. One-third of world's population is infected with the organism that causes tuberculosis. The current vaccine used to prevent it is ineffective and high incidence of multi-drug resistant tuberculosis is also a problem.

Nearly one in three American children are overweight or obese, but sugary sweets are often on the menu at elementary school classroom parties.  Previous small-scale studies have found that "kids consume a lot of calories at classroom parties," but little has been known about how state and district policies impact this aspect of the school food environment. 

 The U.S. Department of Agriculture has issued nationwide standards governing competitive foods and beverages in schools as required by the Healthy, Hunger-Free Kids Act of 2010. However, USDA regulations do not address foods and beverages served during school parties. 

The great angiosperm radiation of the mid-Cretaceous, the dramatic explosion of flowering plant species that occurred about 100 million years ago, is thought to have been good news for evolving mammals, providing them with new options for food and habitat. 

Previous literature suggested the spread of angiosperms, along with the evolution of pollinating insects, may have spurred an increase in the diversity of mammals. The idea made sense: The radiation would likely have resulted in more food sources from seeds, fruits, leaves and insects.

Not always. 

Risky sexual behavior and substance abuse have always orbited HIV but it isn't just shared needles; drugs like cocaine make people engage in lots of other risky behaviors.

The epidemiology of how HIV spreads is well know but relatively little research has been done into how drugs impact the body's defenses against the virus. A new paper examines how cocaine affects a unique population of immune cells called quiescent CD4 T cells, which are resistant to the virus that causes AIDS.

They found that cocaine makes the cells susceptible to infection with HIV, causing both significant infection and new production of the virus.