Male fertility crisis? Israeli global study finds 54% drop in testosterone levels over five decades
https://images.jpost.com/image/upload/f_auto,fl_lossy/q_auto/c_fill,g_faces:center,h_683,w_1024/697012" title="Hebrew University of Jerusalem (photo credit: Gunner Vitaliy Bothman/TPS-IL)" />
A large meta-analysis, studying five decades, has found a dramatic and sustained decline in testosterone levels among men, raising concerns that the male fertility crisis is deeply misunderstood.