老化ろうか
rōka

Noun
Suru Verb
no-Adjective

1. ageing; aging; senile deterioration

Intransitive
老化ろうかふせぐためにもっとからだうごかすべきだ。
rōkao fusegu tameni motto karadao ugokasubekida.
You have to get more exercise in order to stave off senility.