A longevity researcher started taking testosterone in his 50s. He says there are 4 things everyone should know before considering TRT.

Matt Kaeberlein, the CEO of Optispan, shared his longevity habits.

Matt Kaeberlein

• Matt Kaeberlein, a longevity researcher and CEO of Optispan, had symptoms of low testosterone.
• He got his levels tested in his 50s and gradually began testosterone replacement therapy (TRT).
• He said everyone should know 4 things before starting TRT.

In 2020, longevity researcher Matt Kaeberlein started wondering if he had low testosterone levels.

Then, in his early 50s...