If you're eating healthy, getting lots of sleep, but just can't seem to hit a healthy weight, it might be something you've never thought about. Obesogens, a term coined in 2006 to refer to chemicals that cause us to gain and hold on to weight, and can influence weight loss. Now, we know that maintaining a healthy weight and lifestyle is influenced by what seems like a bajillion factors, and is a complicated issue with no easy solution. But, it looks like obesogens are a piece of the puzzle and definitely something you want to be aware about. Data shows that obesity is an increasing problem. Over one-third of both adults and children in the U.S. are obese or overweight (1, 5). Even for people who regularly work out or have superhuman strength to say no to desserts, obesogens are having an impact. Unfortunately, as obesogen research is in its early stages, we still don't know everything about these chemicals and how they affect weight gain, but as of now, here's what we do know.