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Allergan Inc., the maker of wrinkle-smoothing Botox, has agreed to pay $600 million to settle a yearslong federal investigation into its marketing of the top-selling, botulin-based drug.

Scientists are reporting a major advance in diagnosing tuberculosis: A new test can reveal in less than two hours, with very high accuracy, whether someone has the disease and if it’s resistant to the main drug for treating it.

Austin-based psychologist Drema Dial writes about an unusual conundrum at Salon.com: having a son who comes out as gay--again and again.

The system that automatically awards disability benefits to some veterans because of concerns about Agent Orange seems contrary to efforts to control federal spending, the Republican co-chairman of President Barack Obama’s deficit commission said Tuesday.

Federal health regulators are weighing restrictions on Robitussin, NyQuil and other cough suppressants to curb cases of abuse that send thousands of people to the hospital each year.

Good fat, bad fat, cholesterol, and what it all means.

Scene: Breakfast time at Suka restaurant in London at the Sanderson Hotel, where a beautiful buffet lay before me. As usual, I’m starving.

How much salt is too much? How does the body use it? And how can we avoid excess salt in our diet?

A lot of people look at vacation as a time to spoil themselves. They forget all of their fitness goals and eat like kings, and then have to repair the damages to themselves when they return to reality.

If you’ve ever read the nutrition information on a protein bar and wondered what are sugar alcohols, you’re not alone.