Are you gaining weight even though you eat a healthy diet and exercise regularly? Don’t be so quick to blame it on a “bad metabolism”. There’s a health condition that affects almost 3.5 million women in the United Kingdom that not only causes weight gain and obesity, but also leads to hair loss, acne, and infertility – and it’s one that many doctors fail to diagnose in a timely manner. Here’s what you need to know about the elusive condition called polycystic ovarian syndrome.