From medications and ablation to implanted devices, here's what doctors actually use to treat an irregular heartbeat and when each approach makes sense.
Severe shoulder pain can stem from many causes, from rotator cuff tears to nerve compression. Learn what conditions are behind it and how doctors diagnose them.
Seroquel is not a stimulant. Learn how this antipsychotic actually works in the brain, why it causes sedation, and what's behind the occasional activating effect.