Felix Bertram built Skinmed into one of Switzerland's largest skin clinics. He's also an investor on Lion's Den and writes for the Berliner Morgenpost, one of Berlin's biggest newspapers, which also features his podcast.

At 49, he took a biological age test, and the result said his body was 74.

He made small changes he could keep up for good: a regular sleep schedule, cycling and strength training, and cooking at home more. Two years later, his result had dropped to 50. Helping other founders and CEOs do the same became his mission, and the focus of his book, Hacking Age, which became an Amazon bestseller in health.

We built his LinkedIn around that story. His posts turn what he learned into habits a busy founder can start this week, like sleep routines, training, stress and nutrition, told through his own results and his own voice.

When he joined us in June 2024, he had 2,500 LinkedIn followers. He passed 100,000 in June 2026, two years to the day from when he started with us. One post alone, [post title], did 380,000 impressions and brought in 580 new followers.