My iPhone 4S keeps freezing? - 1

I got it as a present from my mom about a month and half ago… I also don't have many apps and always double click the home button and close the apps! But in the last week or so it's been freezing a lot on me. And ideas why this is happening and what to do?

Try doing a hard reset: hold down the top power button and the home button together for 10 seconds or until the apple appears on your screen. That should help. Make sure you power off your phone atleast once a week so the software can reload.