The World Health Organization says that in 2014, about 9 million people died of a heart condition.

The number of deaths could be even higher, as a growing number of people are becoming more aware of the dangers of overuse of heart drugs.

The organization published a report on Thursday that says that more than 3.3 million people were admitted to hospitals for heart failure or arrhythmia between 2012 and 2014, a rise of more than half in just two years.

The report, published in The Lancet, says that among those admitted to intensive care units, more than 1.3 billion people were treated in 2014 alone, and another 2.5 billion were admitted for an underlying condition.

“While the increase in deaths is very significant, it’s not unprecedented,” the report’s lead author, Dr. Peter Mankiw, told AFP.

“It is not uncommon for heart conditions to grow over time and the underlying cause of the disease may be neglected.”

While heart disease is the second leading cause of death globally, the number of heart attacks has risen in the past few years.

The WHO report says the rate of heart attack increased by more than 20 percent in 2014 and the death rate was almost double the rate in 2007.

Mankiw said that the rising number of cases is linked to the growing number and use of heart medicines.

“There is no doubt that there are more people taking these drugs and that’s why they are going up,” he said.

“But the fact is that the main reasons people are taking these medicines is not just because they’re having more problems but also because they are experiencing better outcomes,” he added.

The WHO report found that the increase of cases and deaths has coincided with the rise of the global pharmaceutical industry.

“We know that there is a clear trend towards greater use of cardiac drugs by the pharmaceutical industry and this trend has continued to increase,” Mankiewicz said.

It also found that while more and more patients are being admitted to hospital for heart attacks, only about 10 percent of heart disease cases are actually related to a heart problem.

“In many cases the heart problems are associated with the other major medical problems of the patient, such as obesity and hypertension,” the WHO report said.