A new study found significant correlation between excessive daytime sleepiness and vitamin D - in patients with normal vitamin D levels, progressively higher levels of daytime sleepiness were correlated inversely with progressively lower levels of vitamin D.

But among patients with vitamin D deficiency, sleepiness and vitamin D levels were associated only among black patients.This correlation was observed in a direct relationship, with higher vitamin D levels associated with a higher level of sleepiness among black patients.

Al exercise is good exercise and there is a 100 percent chance you will lose weight if you consume fewer calories than you burn, but if you are interested in optimizing fat and weight loss after the holidays, aerobic training is the best way to go, according to Duke researchers.

They compared aerobic training, resistance training, and a combination of the two in what they say is the largest randomized trial to analyze changes in body composition from the three modes of exercise in overweight or obese adults without diabetes.

A recent Finnish analysis determined that approximately ten percent of 6-8 year olds have sleep-disordered breathing, increased among children with enlarged tonsils, crossbite and convex facial profile. Unlike in adults, excess body fat is not associated with sleep-disordered breathing in this age group. The study was part of the Physical Activity and Nutrition in Children (PANIC) Study led by the Institute of Biomedicine at the University of Eastern Finland. 

Today it is common to refer to sugar and high-fructose corn syrup as "sugary ingredients." Sugar produced from sugar cane or sugar beets is called sucrose, which is a chemical compound in which glucose and fructose -- two different six-carbon, so-called simple sugars -- are chemically bound together.

The little-understood protein osteocalcin plays a significant role in the strength of our bones, says a new paper,  and the findings could lead to new strategies for fighting osteoporosis and lowering the risk of bone fracture.

Who came up with that? Biologists?  Doctors? No, engineers.

 A report based on in vitro tests comparing the digestion of fresh human breast milk and nine different infant formulas found that free fatty acids created during the digestion of infant formula cause cellular death that may contribute to necrotizing enterocolitis, a severe intestinal condition that is often fatal and occurs most commonly in premature infants.

Are there really less pesticide residues on organic crops?  The answer might not be as simple as you think.

There are many reasons to watch what you eat--nutritional value, chemical use during growth or preparation, carbon footprint, and any number of other factors related to a food's healthfulness and ecological impact.

For consumers feeling overwhelmed by all these concerns, there is good news in a recent issue of Frontiers in Ecology and the Environment: A trio of American researchers has revealed that some supermarket choices allow consumers to simultaneously achieve multiple goals.

Specifically, the scientists report that seafood lovers can reap health benefits from fish while also promoting sustainable fishing.

Economics messes everything up.  Just about the time we figure out a new way to make all boats rise, the boats don't play along.

So it goes with the Mediterranean diet, which went from food fad to inclusion in the UNESCO Olympus of the World heritage list and saw lots and lots of research grant money dumped into extolling its virtues, as kind of a cure-all for obesity.  And people listened.

Drinking three to four cups of delicious coffee each day may help prevent type 2 diabetes, according to research published by the Institute for Scientific Information on Coffee (ISIC). Really, that is an actual organization dedicated to promoting the health benefits of coffee.  Some skepticism might ordinarily be warranted but since this is about coffee, it is okay to just accept the science.