The number of kids affected by obesity has tripled since 1980, and this can be traced in large part to lack of exercise and a healthy diet.

Adult stem cells tend not to form tumors.

A terrorist network that believes a nation so tested will fold under pressure of a few horrific acts may capture its attention, but will not achieve its submission.

America does not fight for land, glory or riches.

[The Republican plan will] make sure we bring down the cost of health care for all Americans and that ensures affordable access for all Americans and is pro-life because it will not put seniors in a position of being put to death by their government.

Challenging unfairly subsidized products, fighting counterfeit goods and intellectual property theft and holding countries accountable for an unfair currency regime will help American companies remain competitive.

A stem cell is essentially a blank cell capable of becoming another, more differentiated cell-type in the body, such as a skin cell, a muscle cell or a nerve cell.