While there are a number of operating systems on the market today, perhaps the most effective one for online gaming is Windows 7, as it supports high-quality graphics rendering and effective use of system resources.
Answer from Ted Lowenkopf, M.D. , medical director of Providence Stroke Center: Yes, you can have a stroke and not know it. A stroke's effects can be undetectable if the stroke is small or if the tissue damaged does not serve a critical function. Evidence of the stroke would show on a CT scan or an MRI of the brain, but it might not produce symptoms. But you really may be asking if a stroke can occur without your realizing, at the time, that it's happening â such as when you are asleep or when the effects are minor. Letâs look at those two scenarios separately.
1 Bones and joints. 2  MRI can check for problems of the bones and joints, such as arthritis, problems with the temporomandibular joint, bone marrow problems, bone tumors, cartilage problems, torn ligaments or tendons, or infection. 3  MRI may also be used to tell if a bone is broken when X-ray results are not clear. MRI can look at the brain for tumors, an aneurysm, bleeding in the brain, nerve injury, and other problems, such as damage caused by a stroke. 2  MRI can also find problems of the eyes and optic nerves, and the ears and auditory nerves.