The Age of Anxiety & Depression by the Numbers: Inside the Global Mental Health Data

A new Global Burden of Disease study in The Lancet puts hard numbers on something many of us feel: anxiety and depression are rising faster than almost any other health condition on earth. And even the wealthiest, most secure countries are not spared. Here is what the data actually shows, what it cannot explain, and what it means for how we respond.

9/1/20261 min read

The newest global mental health statistics (2025)

1.2 billion people worldwide are now living with a mental illness, nearly double the figure from 1990, according to a new Global Burden of Disease study published in The Lancet Group. Anxiety disorders are even up 158%, depression 131%. Mental illness has now overtaken cardiovascular disease and cancer as the world’s leading cause of disability.

According to psychiatrist Friedrich Stiefel (Head of the Psychiatry Department at the University Hospital of Vaud), we are not necessarily worse off than in the past. What is eroding is a basic sense of control with diffuse, ongoing, and ever-present crisis in nature, security, and economic.

Anxiety & Depression

Two mechanisms stand out to me. Anxiety spikes when we face a crisis without a sense of control. Depression rises because the losses we are grieving today (safety, trust, etc.) are diffuse and ongoing, not singular events we can mourn and move past. Grief needs an end, and the polycrisis does not offer one.

We cannot think our way out of a diffuse, ongoing threat without the sense of control. Constant rumination is the default result of the mind.

What to do now?

What actually restores a sense of control according to Stiefel is agency: doing something, however small, that is meaningful to us. He points to 3 levers:

1. Investing in relationships

2. Finding any form of agency, acting from meaning rather than guaranteed outcomes

3. Not fighting because we are sure to win, but because the fight itself is where meaning lives

Anxiety and depression feed on passivity. Agency (values-based, deliberate action) closes the gap between what we believe (its hopeless) and how we behave, which is what actually protects mental health long term.

Where in your life today can you stop analyzing and instead choose one small, deliberate action that aligns with what you truly value?