Boobs are the best -- but there's actually so much misinformation floating around about our favorite chest accessory. But, luckily, we have experts like MTV Braless host and sex educator Laci Green to help us keep abreast of all the facts.

Like, even though they are censored and considered X-rated material, did you know breasts are actually just part of what makes humans mammals?

"Breasts house the mammory glands, which produce wonder milk that can nourish babies and help them fight infection and diseases," Green says, adding though that, because they're so sexualized in the West, that point gets lost in translation.

Also, those bras we begrudgingly spend $30 on and put on every day? You don't actually need them and it's good to give the girls a breather every once in a while.

Green also has some tips for how to find the right bra when you do want to wear one. From making sure your fit is just right (not too tight, not too loose), to demystifying the sizing witchcraft (turns out: cups sizes grow proportional to band size.) this is everything you need before your next trip to Victoria's Secret.

On a more serious note, Green shares that it's also super important to get to know your own breasts and how they feel day-to-day.

“There’s a good amount of controversy about doing a self-exam on your breasts to screen for breast cancer,” Green explains. “I mean look: Boobs can get lumpy and bumpy for all kinds of reasons — not just cancer. But, that said, it’s still a great idea to know what’s normal for you!”

You can watch expand your boob knowledge even more by watching the full video here: