It's important to figure out what type of headache is causing your pain.

Both types can cause serious health problems and, in some cases, even death.

Some types cause warts that you can see or feel.

Both types of pollution can cause health and environmental problems.

Each type of stress causes a similar chemical reaction in your body.

But some types of objects can cause more serious problems when they are swallowed.

These types of drugs can cause an increase in your appetite.

It was not clear what type of ammunition caused the deaths today.

This type of behavior can cause a computer to operate more slowly than normal.

Certain types of rays from the sun can cause skin cancer.