Medical Treatments

More than 23,000 Americans end up in emergency rooms each year after taking dietary supplements, an analysis shows. Most cases are linked to weight-loss products or energy-boosting supplements.

Good CPR requires 100 to 120 chest compressions per minute. If you go too fast or too slow it's not as effective. Researchers say using a metronome helps medical providers maintain the right pace.

A big sticking point in the negotiations over the Trans-Pacific Partnership involved biologics medicines and vaccines created from living organisms. The dispute centered on patent protection: how many years drug companies should have before facing competition from generics. The negotiators ended up with a complicated compromise that gives drug makers five to eight years of protection. But nobody is really happy with the outcome.