Dangerous stimulant DMAA is sold under variety of ingredient names, agency says
Small study suggests supplement might help, but diabetes expert is skeptical
Symptoms may include anxiousness and feeling jittery
But more research is needed on the caffeine-laden beverages, review says
Extreme levels of fluoride from daily consumption of a concentrated brew caused pain, brittle teeth
Study found drinking java and other caffeinated beverages lowered crash risk by 63 percent
Large Japanese study didn't prove cause and effect, however
Says highly caffeinated beverages can cause heart problems, especially when combined with alcohol
Most cases involved young adults, 42 percent involved drugs or alcohol, government survey found
Study found that even when brands listed amounts, they often were inaccurate
Chronic pain can make it difficult to get a good night's sleep but restful sleep helps with pain management. Here's how to break the vicious cycle of pain and sleep.