what's the buzz...

what's the buzz...

Faster growing babies may have higher IQ 

Weight gain and increased head size in the first month of a baby's life is linked to a higher IQ at early school age, a new study has revealed. 

Researchers from University of Adelaide Public Health analysed data from more than 13,800 children who were born full-term. 

The study found that babies who put on 40 percent of their birth weight in the first four weeks had an IQ 1.5 points higher by the time they were six years of age, compared with babies who only put on 15percent of their birth weight. 

According to lead author, Dr Lisa Smithers, head circumference is an indicator of brain volume, so a greater increase in head circumference in a newborn baby suggests more rapid brain growth. 

The study was published in the journal Pediatrics.
Calcium and vit D intake timing may affect bone

Taking calcium and vitamin D before exercise may influence how bones adapt to exercise, according to a new study. 

The study lead author Vanessa D. Sherk, PhD, postdoctoral research fellow at the University of Colorado Anschutz Medical Campus, the timing of calcium supplementation, and not just the amount of supplementation, may be an important factor in how the skeleton adapts to exercise training. 

In the study, which included 52 men aged 18 to 45 years, investigators found that an exercise-induced decrease in blood calcium occurred whether calcium supplements were taken before or after exercising. 

Pre-exercise supplementation, however, resulted in less of a decrease. 

Although not statistically significant, parathyroid hormone levels increased slightly less among cyclists who took calcium before exercising. 

“Taking calcium before exercise may help keep blood levels more stable during exercise, compared to taking the supplement afterwards, but we do not yet know the long-term effects of this on bone density,” Sherk said. 

The timing of calcium supplementation did not cause a difference in blood levels of a compound that is a biological indicator of bone loss.
Getting enough sleep may help prevent diabetes in men

Men who lose sleep during the work week may be able to lower their risk of developing Type 2 diabetes by getting more hours of sleep, a new study has revealed. 

The research conducted by Los Angeles Biomedical Research Institute has found that  insulin sensitivity, the body's ability to clear glucose (blood sugar) from the bloodstream, significantly improved after three nights of "catch-up sleep" on the weekend in men with long-term, weekday sleep restrictions. 

The study lead by author Peter Liu, provides information about people who lose sleep during the week - often because of jobs and busy lifestyles - but "catch up" on their sleep on the weekends. 

Liu and researchers from the University of Sydney in Australia studied 19 non-diabetic men, with an average age of 28.6 years, who for six months or longer (average, 5.1 years) self-reported inadequate sleep during the workweek.