Archive for: January 2006

Some HIV medications lead to the development of drug-resistant HIV when patients take as few as two percent of their medications. For other medications, resistance occurs only when patients take most of their pills. These differences appear to be explained by the different levels of viral "fitness" of the drug-resistant HIV, say AIDS researchers in a new study.

The body's ability to heal even small skin wounds normally slows down as we age. But a new study in older adults finds that regular exercise may speed up the wound-healing process by as much as 25 percent. "This is the first time we've been able to document this kind of enhancement associated with exercise," said the lead author of the study.