Hugo Chávez's health has worsened with a new respiratory problem. Venezuelan officials said it was caused by his weak immune system, due to the strong radiotherapy he is receiving to treat his cancer.

(Reuters) - Venezuela's bespectacled and shaven-headed information minister stands solemnly at the microphone to impart the latest news on President Hugo Chavez's cancer.

The year started in the United States with a mild flu season but ended up being marked by deadly outbreaks of fungal meningitis, West Nile virus and Hantavirus.

Boxer Juan Manuel Marquez finally got his revenge on eight-time champion Manny Pacquaio Saturday, knocking the iconic fighter out cold at the end of the sixth round.

Venezuelan President Hugo Chavez will not attend a regional trade summit in Brazil on Friday, sources said, an absence sure to heighten speculation over the leftist leader's health.

An estimated one in ten people suffer from depression. Antidepressants are the most widely-used drugs in the U.S., with a whopping 11 percent of Americans over the age of 12 taking them under medical supervision.

With three days to go until Election Day, GOP presidential nominee Mitt Romney's views on marriage, gun control, health care, and taxes are pretty much the same and could ultimately affect the turnout of the general election on Tuesday.

Ecuador is worried about the health of WikiLeaks founder Julian Assange and has asked Britain to guarantee him safe passage from its London embassy to hospital if he needs medical treatment, a senior Ecuadorean diplomat said in Moscow.

New research has found that 20 minutes of daily, vigorous physical activity over just three months can reduce a child's risk of diabetes as well as his total body fat - including dangerous, deep abdominal fat - but 40 minutes works even better.

In a controversial move, New York City's Board of Health passed a rule banning sales of big sodas and other sugary drinks at restaurants, concession stands, and other eateries.

Immigrants make up less than 13 percent of the total population and children of immigrants make up 22 percent of all children and 30 percent of low-income children in the United States.

A new study has revealed that repeated exposure to violent images from the terrorist attacks of September 11 and the Iraq War can lead to an increase in physical and psychological ailments.

A Stanford University research claims if you are an adult making a decision based solely on your health, there is not much difference between organic and conventional foods.