It will not cause your hair to thin or fall out.

The wind caused everyone's hair to lean in one direction.

The movement caused her hair to catch a flash of light.

The chemotherapy treatment caused his hair to fall out, though it has grown back.

In other cases, certain medications, having too much vitamin A, or not getting enough protein can cause hair to fall out.

Chemotherapy that ended last November caused her hair to fall out.

She is glad for little things, like God not allowing the chemotherapy to cause her hair to fall out before the wedding.

She seems to recover slightly, though the pills she's taking are causing her hair to fall out.

Later, Yale researchers found signals in fat cells that cause hair to grow.

He hit his head as an 11 year old when falling from a tree, which caused his hair to fall out.