When searching for statistics, be aware that sometimes the most current statistics will be a year or two behind, depending on if the information is made available to the public at this time. Also, look out for bias: statistics can be presented in a way that purposely steers the audience to one side or another.

In addition to the following websites, try doing a Google search for the statistics you need. To only search government sites, use the following technique:

[search term] site:.gov

heart attack statistics site:.gov

This will tell Google that you only want to see information from sites that end in .gov.