In this week’s Medical Discovery News with UTMB’s David Niesel and Norbert Herzog: While most stroke patients are past midlife, even those in their 20s can suffer a stroke. Stroke victims increase their chances of a full recovery if they can get treatment within three hours of the first symptoms. But for that to happen, a person must get to a hospital within the first hour to give doctors enough time to evaluate their condition and administer the right drugs. Stretching that window could buy a lot of time for more people. In lab tests, a compound called dalfampridine, also known as Ampyra, can expand the treatment window not just by hours, but by weeks.