By EMILY HAGEN
Sandy Chan ’15 says most days she can be found in Weill Hall, where she studies the effects of aspirin as a blood thinner. Chan, a Cornell Biology Research Fellow and McNair Scholar, does her research in the lab of Prof. Chris Schaffer, biomedical engineering, and Prof. Nozomi Nishimura, biomedical engineering, investigating whether or not it causes increased bleeding in the brain when blood vessels rupture. Microhemorrhages are small bleeds in the brain that become more common as humans age, according to Chan. They contribute to cognitive decline and dementia.