Patients with H.I.V. are living longer than ever before, but experts caution they’re not out of the woods yet.

Researchers reviewed 14 studies of H.I.V. patients who started Anti-Retroviral therapy at 20-years-old.

The looked at data from 1996 to 2005.

They found life expectancy increased by 13 years for patients from high income countries, and mortality dropped 40%.

However, these patients still had a lower life expectancy than the general population.

Most patients died 17 years before people without the disease.

In other medical news…

People who are exposed to cigarette smoke when they're sick might be making themselves feel worse.

Researchers at Yale University found the combination of viral cells and cigarette smoke caused more severe airway damage, and worsened flu symptoms in mice.

They also identified how the enhancement of cold symptoms happens when people smoke.

They hope to use this information in future studies.