Gallup considers people with a body mass index of 30 or higher to become obese, while people that have a BMI between 25.0 and 29.9 are believed overweight. A BMI between 18.5 and 24.9 is known as to be normal weight, while anything under 18.4 is considered underweight. The recent small decline in the country’s obesity rate is a positive contrast to the rising levels within 2009 and throughout most of 2010, writes Gallup in a release on the brand new data. However, nearly all Americans remain at an unhealthy pounds – – either over weight or obese . Between 2010 and 2011, obesity rates declined in every individual demographic category except for Asians and Aged 65+.Research participants were 18 to 30 years old primarily, an organization considered at risky for contracting STIs. They were randomly assigned to a no-payment control group, a low-payment group and a high-payment group. Over the full year, individuals in the low-payment group could get $10 every 4 months – up to $30 – if indeed they tested unfavorable for STIs, while those in the high-payment group could get $20 every 4 months, up to $60. Related StoriesBrown University experts describe new solution to check HIV mutationsNew research discovers high prevalence of HIV among pregnant refugee women in OntarioRutgers College of Nursing takes business lead in $6 million nationwide effort to avoid new HIV infectionsAll participants were tested in the beginning of the study and every four months for the following calendar year to detect a couple of curable sexually transmitted infections, including chlamydia, syphilis and gonorrhea.