Of course, if alcohol is the cause, you have a few ways of dealing with it. The same goes for those headaches caused by 3D movies, or eyestrain. With eyestrain, it's also worth looking into seeing if you might need glasses as well (or at least clean yours if you're already wearing some). If your headaches come from bad posture, that can be improved, and ergonomically optimizing your workspace can help as well. Photo by Rob Sinclair.