We know that with age, the connections between neurons -- the way neurons talk to each other, the synapses -- they start to deteriorate; neurons die, the brain starts to shrink, and there's an increased susceptibility for these neurodegenerative diseases.
Kita tahu bahwa seiring usia, hubungan antar neuron -- cara neuron saling berkomunikasi, pencabangannya -- mulai menurun; neuron mati, otak mulai menciut, dan penyakit neurodegeneratif semakin rentan.