By Alex Knapp, Amy Feldman and Monica Hunter-HartFor more than a decade, Olivia Ferro, 26, struggled with health issues and a medical system that couldn’t seem to figure out what was wrong with her. She gained weight and suffered excruciating inflammatory attacks that left her with so much swelling and pain that she couldn’t fit into her clothes. Yet her struggles were repeatedly dismissed by doctors, she tells Forbes, until she was finally diagnosed with polycystic ovarian syndrome and treated with medication. “I was told, ‘Oh, it might just all be in your head,’” she says. “‘It’s just because you’re a girl and girls go through these types of things.’” Sebastian Nevols for ForbesThese experiences led her and her sister, Chloe, 24, to launch London-based SheMed in 2024. Last October, the company raised $50 million at a valuation of $1 billion. The startup has built a female-focused telehealth platform that helps its more than 80,000 patients best use GLP-1 drugs like Wegovy and Zepbound, which the duo sees as having a future beyond weight loss and diabetes. SheMed doesn’t just provide prescriptions (through partner eMed)—it offers support and guidance for patients using them so that they can get best results. “We do believe it is a long-term medication,” Olivia says.The Ferros are just two of the entrepreneurs on this year’s 30 Under 30 Europe list for Science & Healthcare. For more than a decade, Forbes has highlighted young scientists and entrepreneurs for our annual 30 Under 30 list, with the help of nominations from the public. To be considered for this year’s list, all candidates had to be under the age of 30 as of April 14 and never before named to the 30 Under 30 North America, Asia or Europe list. The nominees were evaluated by a panel of judges featuring Alexandre Momeni, a London-based partner at VC firm General Catalyst; Volodymyr Levykin, founder and CEO of British rocket company Skyrora; Felicia von Reden, cofounder and CEO of fertility startup Ovom Care and an alumna of the 2025 Under 30 Europe list; and Audrey Duval, head of global corporate affairs at French pharmaceutical giant Sanofi. SheMed isn’t the only company using tech to improve access to care. There’s also Aaron Lin, 27, and Hamzah Selim, 28, who cofounded Mindstep, which has built an app that acts as a “pocket neurologist” that can screen for potential neurological problems by tracking a patient’s eye movements. Elsewhere, Oleksandr Bondariev, 27, Vitalii Marchenko, 25, and Oleksii Yakubenko, 26, are using AI at their startup, Pleso Therapy, to pair mental health patients in Central and Eastern Europe with the best therapist for their needs.Speaking of AI, a number of listmakers this year used the emerging technology in cutting-edge ways. Take Angelica Iacovelli, 26, whose firm Nucleo Research has developed AI agents that can automatically extract key information from CT scans to save radiologists time and get cancer patients diagnosed faster. Benjamin Tenmann, 29, and Lorenzo Sani, 29, built an AI platform at their company ScienceMachine that’s used by thousands of researchers to automate some of the tedious manual aspects of R&D. Then there’s Siyuan Guo, 29, who isn’t just working on AI development—her doctoral research helped develop a theoretical scientific framework for it, with an eye to making models more transparent and understandable.But this list isn’t all about software development. Take Fergal Mackie, 28, whose startup Metacarpal is developing prosthetic hands with high-end functionality—without batteries, motors or sensors. Or Rachel Beatty, 29, whose research into “soft robotics” led to the development of medical implants that have a lower risk of being mistakenly attacked by the immune system. There’s also Shuler Xu, 28, whose company RapidX Bio built a device that can quickly detect sepsis and pneumonia in emergency room patients. These are only a sample of the exceptional academics and founders on this year’s Forbes 30 Under 30 Europe Science & Healthcare list. Be sure to check out the full list, plus all of the other categories.This year’s list was edited by Alex Knapp, Amy Feldman and Monica Hunter-Hart. For a link to our complete category list, click here, and for full 30 Under 30 Europe coverage, click here.30 UNDER 30 RELATED ARTICLESForbesBy The Numbers: Meet The Forbes 30 Under 30 Europe Class Of 2026By Alexandra YorkForbesHow We Make The Forbes Under 30 Europe ListBy Alexandra YorkForbes30 Under 30 Art & Culture 2026: Meet The Artists, Founders And Designers Defining A New Creative StandardBy Brianne GarrettForbes30 Under 30 Finance 2026: The Visionaries And Velocity-Seekers Reimagining Global CapitalBy Martina Di LicosaForbes30 Under 30 Europe Retail & Ecommerce 2026: Young Entrepreneurs Shaping The Ways We ShopBy Katherine Love