New statistics on gun deaths have found more than half are suicides.

According to the centers for disease control and prevention 55 percent of all gun related deaths are suicides.

Homicides accounted for just 40 percent of all gun deaths and accidents made up three percent.

According public health experts the risk of suicide greatly increases in homes with guns.

In other medical news…

Biology may be the biggest factor in determining whether people actually vote.

The decision to vote is partly genetic... according to research published in the American political science review.

It reports that genes influence participation in elections and other political activities.

Two of the researchers have published a separate study showing a link between two specific genes and political participation.

They show that people with a variant of one gene were significantly more likely to vote in the 2000 presidential election.

The researchers used voter turnout records in Los Angeles and matched them to a registry of identical and non-identical twins.

The results show that 53 percent of the variation in voter turnout is due to the differences in genes.