Gulf of Guinea. Gulf of Guinea, part of the eastern tropical Atlantic Ocean off the western African coast, extending westward from Cap LÃ³pez, near the Equator, to Cape Palmas at longitude 7Â° west. Its major tributaries include the Volta and Niger rivers.
Being overweight has a clear association with important health problems, and even modest weight loss has important health benefits, said Walter Willett, an expert on nutrition and health at the Harvard School of Public Health. To tell people it doesn't matter is really misleading. It does make a difference.
Muscle weighs more than fat, so a muscular person may appear to have a higher BMI, or a frail, inactive person may have more body fat than is healthy. For adults 20 years and older: 1  A BMI below 18.5 (shown in white) is considered underweight. 2  A BMI of 18.5 to 24.9 (green) is considered healthy. 3  A BMI of 25 to 29.9 (yellow) is considered overweight. 4  A BMI of 30 or higher (red) is considered obese.