President Joe Biden has posted on social media that he believes it's in the best interest of the country to drop out, endorsing his Vice President Kamala Harris as his replacement. And In case you missed it, new research has found traces of toxic metals present in tampons from a range of brands. Before we sound the alarm and boycott tampons completely, we're turning to an expert to find out just how worried we should actually be. Spoiler alert: less than you think.  THE END BITS  Subscribe to Mamamia GET IN TOUCH Share your story, feedback, or dilemma! Send us a voice note or email us at [email protected] and one of our Podcast Producers will come back to you ASAP. CONTACT US Got a topic you'd like us to cover? Send us an email at [email protected] CREDITS Host: Claire Murphy  With thanks to:  Dr Andrea Love, Immunologist and Microbiologist Producer: Claire Murphy  Senior Producer: Taylah StranoAudio Producer: Thom Lion Become a Mamamia subscriber: https://www.mamamia.com.au/subscribe See omnystudio.com/listener for privacy information.