It is worse than that. Being good at expressive, self-documenting code correlates with strong communication skills and empathy. So programmers who get good at it tend to increase the risk of managerial borgification.

1. Before writing a class or a function write comments about what the code will do (unless it’s absolutely trivial)

2. Check if the comments make sense

3. Write the code

That simple practice almost guarantees understandable code.