New researchers shows that severe heart attacks may not be as deadly as they used to be. French researchers found that the chances of dying from a severe heart attack within 30 days have dropped from 13.7 percent in 1995 to 4.4 percent in 2010, making an improvement of 68 percent. Researchers analyzed data from over 6,700 patients that were admitted into intensive care units. The study found that the amount of younger women who have heart attacks doubled from 11.8 percent in 1995 to 25.5 percent in 2010. Experts say that the chances of dying decreased due to new improvements in medications and treatments. Researchers say that smoking and obesity can play a role in developing a heart attack risk.