Hunters Point, one of the sites under consideration by the 49ers, is farther from Highway 101 than the team's current home, Monster Park. The other proposed site, Great America, is near Highways 101 and 237, but lacks nearby mass transit. More worrisome for the fans, the smaller Great America site would require a parking structure, which is less suited for tailgating and takes longer to enter and exit..Five years later, that had climbed to 22 percent. By the time the blood pressure data were taken, three years ago, 37 percent were obese and about 60 percent were overweight.Until now, estimates of the prevalence of high blood pressure in Americans had been based largely on a different study, the National Health and Nutrition Examination Survey, which looks across a wider range of ages. Pulling data for about 800 young adults from that broader study indicated that about 4 percent suffered from high blood pressure.Eric Whitsel, one of the UNC researchers involved in the new study, sai