If you’re like me, you can get lost in researching/working at the computer, with an hour passing before you know it! Then you suddenly realize it’s way past the break you should have taken to stretch and move around to avoid ergonomic injuries. Kim Kommando has a great download, BreakTaker, to remind you to stand up, move around, and get your body back into happy alignment. (Be advised it’s for Windows machines.)
From the website: “By encouraging you to take short breaks at regular intervals, BreakTaker can increase your overall productivity and can alleviate common workplace injuries resulting from fatigue, eye strain, and repetitive stress injury.” Seems like a good idea to me!