Let's say you're 65; there's Alzheimer's in your family, so you've likely inherited a gene or two that tips your scale arm a bit; you've been burning the candle at both ends for years; you love bacon; and you don't run unless someone's chasing you.
Katakan Anda berusia 65 tahun; ada riwayat Alzheimer di keluarga, jadi Anda mungkin mewarisi 1 atau 2 gen yang menggerakkan jungkat-jungkit sedikit, Anda suka begadang selama bertahun-tahun, Anda suka daging babi asap, Anda tidak pernah lari kecuali ada yang mengejar Anda