Filing for bankruptcy is often considered a worst-case scenario. And for many Americans who do pursue that last-ditch effort to rescue their finances, it is because of one reason: health-care costs. A new study from academic researchers found that 66.5 percent of all bankruptcies were tied to medical issues either because of high costs for care or time out of work. An estimated 530,000 families turn to bankruptcy each year because of medical issues and bills, the research found. Other reasons include unaffordable mortgages or foreclosure, at 45 percent; followed by spending or living beyond one's means, 44.4 percent; providing help to friends or relatives, 28.4 percent; student loans, 25.4 percent; or divorce or separation, 24.4 percent. The culprit ... was inadequate health-care insurance, according to a co-author of the research, Dr. David U. Himmelstein, a distinguished professor at Hunter College. Most families do not have enough saved for a simple emergency, let alone thousands of dollars in unexpected medical costs. A recent study ... found that only 40 percent of Americans have enough saved to cover a $1,000 emergency expense. To help combat this problem, Physicians for a National Health Program is advocating for a national Medicare for All program that would broaden insurance coverage for Americans.