Just take a deep breath — unless the air is polluted, that is. Ultrafine particles in polluted air may be tied to heart disease.

Eczema is a frustrating problem — it itches, and you don’t look your best in sleeveless tops. And you may have trouble getting access to health care.

Panic may be the first response for some patients who discover they have a growth. Many growths in the thyroid gland, however, don't go on to cause harm.

What you don’t know about your breast density may affect your decision-making when it comes to breast cancer screenings like mammograms.

Exercise is almost never a bad thing, but new evidence suggests that not all exercise is created equal.

In the past, some have raised concerns that coffee could be bad for the heart. Growing evidence, however, suggests that drinking coffee regularly may boost heart health.

Electronic cigarettes, or e-cigs, may be increasing in popularity among teens. And teens may not have much trouble buying e-cigs online, despite being underage.

Break out the tape measure and scale. Measurements like height and weight could help doctors spot celiac disease earlier in kids.

A short-term effect of concussions could be used as an important tool for doctors diagnosing and treating this brain injury.

Bring on the peanut butter sandwiches. Peanuts may be good for your heart.