Most people think stress is a mental problem.
It isn't. It's a hormonal one.
Every time your body experiences stress — a hard deadline, a difficult conversation, a sleepless night — it floods your system with cortisol. Cortisol is your "threat response" hormone. In small doses it's useful. In the chronic doses that define modern life, it is catastrophic.
Here's what chronic cortisol does to your body:
In men, it directly suppresses testosterone production. That's the hormone responsible for drive, strength, focus, and recovery.
In women, it disrupts estrogen and progesterone balance. That's what triggers the "wired but tired" cycle where you feel anxious and exhausted at the same time.
In everyone, it tanks energy at the mitochondrial level. That's why even a full night of rest can leave you feeling unrestored.
This is the seesaw nobody talks about. When cortisol goes up, your vitality goes down. And in 2025, cortisol is almost never not elevated.
The people who seem to handle everything — who stay sharp, stay energized, stay even-keeled under pressure — aren't tougher than you. Their cortisol is simply better managed.
That's not genetics. That's biochemistry. And biochemistry can be supported.