In early 2016, the global population totaled more than 640 million obese people. These new totals now show that more than half the world is overweight. This increase in obesity means that one in seven women and one in 10 men are obese, with a body mass index of more than 30 (overweight is 25). During the last 40 years, the average male BMI has risen from 21.7 to 24.2 while females saw a rise from 22.1 to 24.4. That totals to an average of 3.3 pounds gained per decade. The study looked at almost 20 million adults worldwide. It's an epidemic that has seen worldwide attention as countries address food labeling practices, food pricing, taxes on unhealthy foods, and government nutrition recommendations. At the same time, many of the world's poorest are underweight, suffering from a lack of food. Obesity can have both health and economic effects. As healthcare costs rise, problems due to an unhealthy weight can affect the economic stability of millions of households. But it doesn't have to be this way. Leading a healthy lifestyle with plenty of exercise and a smart diet can allow you to live a longer and better life.