Women don't need a study to tell them this! Weight gain is a constant battle! The good news,  if you must gain weight, the best place for that fat to land is on your hips, butt and thighs. Fat stored here is actually good for you, since it protects against heart and metabolic problems, according to a team of experts from Oxford University in Great Britain. The medical explanation. Hip fat actually absorbs harmful fatty acids and contains an anti-inflammatory agent that helps prevent arteries from clogging. So while a big rear may not look flattering in tight jeans, it can help you live longer!