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"Periodontal disease is a low-grade chronic inflammatory condition disease of the mouth, which the research studies have suggested may develop into a systemic inflammatory condition, and therefore lead on to cardiovascular disease."

Let us hope that we have learned the lessons from the WTC clean-up. In addition to requiring a full environmental clean-up, the US government should also insist on safe standards for clean-up workers, and should require that BP be on the hook for the health costs of the oil catastrophe workers and other exposed persons.

Medical marijuana is gaining traction in the United States with the passage of legislation in New Jersey legalizing marijuana. In these YouTube videos we hear of how compounds in marijuana can inhibit cancer.

The NFL has issued a new concussion policy: players are not to return to play until fully asymptomatic. This is a step in the right direction, but the policy does not go far enough.

In this YouTube clip, a kid decides he wants to see what will happen to him when he zaps himself with a TASER brand electroshock weapon. He lays unconscious until the clip ends.

This young woman talks about an adverse reaction that occurred after receiving the Gardasil vaccine. She has lost function in her legs and cannot go to school or leave her house. She received the vaccine at age 21. The efficacy of Gardasil in saving lives from cervical cancer will not be truly known for years and years, the length of time that it would take for cervical cancer to naturally develop. In the mean time, do no harm.

This video represents one of my worst fears: that a mentally unstable patient will come to the Emergency Room and threaten the lives of staff. Oh wait, that happens every day. It's the three hidden handguns and a dead body that make this Emergency Department story a little more worrisome.

Trampoline injuries are not just from falls off of the trampoline on to the ground. In this clip from YouTube, a child injures his leg playing basketball on a trampoline.

This video concisely describes the ethical issues in forcing a child to undergo chemotherapy: a child does not have the legal or intellectual capacity to refuse lifesaving medical care.

The first US death from swine flu has been reported in Texas: a toddler in Texas.

In this National Geographic excerpt from YouTube, an expert demonstrates how easy, and dangerous, it is to make methamphetamines from pseudoephedrine. Methamphetamine cooks can suffer life-threatening total body burns.

Stress Echocardiograms can be used to evaluate heart health. Watch how it works.