Scientists say they need better access to human brain tissue to understand how dementia, Alzheimer's, epilepsy, autism, ...

A Catch-22 sit­u­a­tion is de­scribed as a dilem­ma or para­dox from which there is no es­cape be­cause of mu­tu­al­ly con­flict­ing or de­pen­dent con­di­tions. In this con­text, one can­not avoid a ...