Taking steps to recover from depression and boost vitamin D levels may improve heart health, according to new research out Saturday. 

The findings were contained in two studies presented at the American College of Cardiology conference in Chicago.

A major international study Saturday suggested that healthy people may reduce their risk of developing heart problems before they start by taking cholesterol-lowering drugs, known as statins.

The findings came from three trials, which included more than 12,000 people in 21 countries, and were released at the American College of Cardiology conference in Chicago.

One in five adults could be obese by 2025, said a major survey Friday that warned of a looming epidemic of "severe obesity" with significant health and economic costs.

The world's first liver transplant from a donor infected with HIV to an HIV-positive recipient was announced Wednesday by U.S. doctors, three years after a U.S. ban on such operations was overturned.

The procedure involved a deceased donor whose liver was transplanted into a patient who had been infected with the virus that causes AIDS more than 20 years ago, said doctors at Johns Hopkins University.

A global police crackdown has seized over 10,000 tons of illicit or dangerous food and drink including monkey meat, dead insects and fake sugar spiked with fertilizer, the European police agency said Wednesday.

For Kim Vaillancourt, pregnant while staving off aggressive brain cancer, it comes down to this: "The baby saved me. Now it's my turn to save him."

Vaillancourt was diagnosed with glioblastoma after going to the hospital for headaches and nausea that came on over Christmas. Were it not for concern for the boy she's carrying, she and her husband, Phil, said it was a life-saving trip she would not have made.

With its moat, wall, barbed wire, armed guards and security cameras, the facility could be mistaken for a military base if it weren't for the pungent odor of marijuana in the air.

Pro-life activists in Poland want to tighten an abortion law that is already one of the most restrictive in Europe, but the move risks a backlash against the new right-wing government.

The anti-abortion movement in the devout EU country, where 90 percent of residents identify themselves as Roman Catholic, has also set its sights on the morning after pill and test-tube babies.

Men who have been diagnosed with the Zika virus or have symptoms of the illness should wait at least six months before having unprotected sex, U.S. health authorities said Friday.

Meanwhile, women confirmed to have Zika or who have its symptoms should wait at least eight weeks after the illness first appears before trying to become pregnant, the U.S. Centers for Disease Control and Prevention said in its updated interim guidelines on ensuring healthy pregnancies and babies amid the outbreak.

More than 130 suspects have been detained in connection with a vaccine scandal in China that has triggered outrage about safety, Chinese media reported Thursday, more than tripling the number held.

The case involves the illegal and improper storage, transport and sale of tens of millions of dollars' worth of vaccines -- many of them expired -- reports say.