In this episode of Tiny Show and Tell Us, a listener asks: Could we still be carrying air from our very first breath? Deboki unpack’s residual lung volume, gas exchange, and a forensic technique used to determine whether or not someone drowned. Then, the conversation turns to women’s health and bleeding disorders after a listener shares their experience living with Von Willebrand disease — the most common bleeding disorder. Sam explores what the condition is, how it was discovered, why it disproportionately affects women, and how normalizing heavy, painful periods is not just frustrating but has serious medical consequences.Check out Pale Blue Pod here or wherever you get podcasts!We need your stories — they're what make these bonus episodes possible! Write in to [email protected] *or fill out this form* with your favorite science fact or science news story for a chance to be featured.A transcript and references for this episode can be found at acs.org/tinymatters.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.