Increase in Portion Sizes in the United States A study compared current portions of food products in the United States with past portions, concluding that the sizes of current marketplace foods almost universally exceed those offered in the past. The trend toward larger portion sizes in the United States began in the 1970s, and portionContinue reading “US Obesity epidemic”
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People evolved to fight Cholera by Nathan Seppa
Some people in Bangladesh carry genetic alterations that seem to protect against cholera, a study shows. These changes apparently occurred over thousands of years as exposure to the disease exerted a form of natural selection on people in the Ganges River Delta. Although cholera can cause lethal, dehydrating diarrhea, 60 to 90 percent of peopleContinue reading “People evolved to fight Cholera by Nathan Seppa”