Grammar fix

risk factor

something that increases danger

A risk factor is something that makes it more likely for a problem, illness, or danger to happen.

collocationB2occasional

Hear it in context

Notice where the phrase sounds natural.

Lack of exercise is a major risk factor for heart disease.

In my opinion, stress is a significant risk factor for many health problems, so people should try to manage it better.

Fix the pattern

One small grammar move makes it sound right.

Not: Smoking is a risk factor of heart disease.

Say: Smoking is a risk factor for heart disease.

A risk factor FOR a disease, not 'of'.

  • Pattern
  • risk factor (for something)

Which sounds natural?

Tap the one a native speaker would say.

Build natural chunks

Words that usually travel with it.

a risk factor for

  • a risk factor for
  • a major risk factor
  • key risk factors
  • reduce the risk

Don't confuse it

Try it in Daily Speak