They have that name because they're often caused by unhealthy habits, such as these:

For example, doctors can try to persuade patients to change unhealthy habits.

There's a difference between making mistakes and having unhealthy habits.

That's what makes changing unhealthy habits into healthy ones so hard.

One approach is to focus on becoming more aware of your unhealthy habits.

Anorexia can take a long time to overcome, and it is common to fall back into unhealthy habits.

Should incentives be used to help people quit unhealthy habits?

"If you want to talk about unhealthy habits, you're the one who smokes too much."

It inspired Josh to keep up his unhealthy habits, so there's that.

That's true no matter what unhealthy habit you are trying to shed.