One study found men were 21% more likely to die after the loss of their wife. Widows had a 17% increased risk of death.
Now this seems like common sense. In practice it is not uncommon when someones looses his or her partner at an older age they soon afterwards die as well.
BBC health has some probable explanations for this phenomenon based on Dutch research.
Investigator Margaret Stroebe of Utrecht University, The Netherlands, said the psychological distress caused by the loss played a big part.