According to a new study, about 25 percent of the nearly 900 former N.F.L. players who died between 2016 and 2021 had chronic traumatic encephalopathy.
The former N.F.L. player Jonathan Martin entering an M.R.I. machine for a brain examination that was part of a study to develop treatments for the symptoms and illnesses linked to C.T.E.
Some athletes battered by concussions are desperately searching beyond conventional medicine. Researchers see potential in the brain-stimulating power of psilocybin mushrooms.
Some athletes battered by concussions are desperately searching beyond conventional medicine. Researchers see potential in the brain-stimulating power of psilocybin mushrooms.